Basic Info.
Manufacturing Process
CNC Milling
Surface Treatment
Polishing
Airflow Speed in The Pipe
15-30m/S
Compressed Air Pressure
0.3-0.4MPa
Sampling Time
2-3min/Time
Transport Package
Sea Freight
Origin
Lianyungang, Jiangsu, China
Product Description
Hidden arm fixed pulverized coal sampling device
Product Description
Hidden arm fixed pulverized coal sampling device
Enterprise standard number: Q/320706JBC 12-2016
One.Overview:
The hidden arm type fixed pulverized coal sampling device is a special device for sampling pulverized coal on the primary air pulverized coal conveying pipeline of positive pressure direct-fired pulverizing system. In the daily operation of the coal mill, the wear of the grinding parts of the coal mill, the change of coal type and fragmentation will greatly change the fineness of pulverized coal, which will directly affect the combustion efficiency of the boiler and increase the cost of power generation. Therefore, the fineness of pulverized coal is sampled and tested regularly. When the fineness of pulverized coal exceeds the design value, the grinding parts of the coal mill or the opening of the separator will be adjusted in time to achieve the design requirements.
Two.Product features and structural forms:
This product uses compressed air as the power to make the sampling tube, separator and sampling bottle generate negative pressure to suck coal powder to achieve the sampling purpose, and can use compressed air to purge the sampling tube to avoid the problem of sampling tube blockage. The equipment is equipped with a compressed air pressure regulating valve, through which the pressure and flow of compressed air can be adjusted to control the sampling speed and realize constant speed sampling. So that the extracted pulverized coal is representative. The sampling tube is designed with concealed arm, which is vertically hidden outside the pulverized coal pipeline when it is not working, so as to avoid the erosion of the sampling tube by pulverized coal airflow and greatly improve the service life of the sampling tube.
The hidden arm fixed pulverized coal sampling device mainly consists of the following parts:
1,As soon as the sampling tube extends into the pulverized coal pipeline, the sampling port faces the pulverized coal airflow, and the pulverized coal enters the sampling device. Sampling is multipoint sampling.
2,Sampling bottle 1 stores the pulverized coal samples separated from the cyclone in a centralized way for calibration.
3,Cyclone separator-solid-gas separation is carried out on the gas-powder mixture, and the pulverized coal is thrown to the wall by the rotating airflow due to gravity, and then falls into the powder accumulator by gravity.
The separated gas rises to the top along the middle route, is discharged from the top air outlet, and is pumped by the ejector and sent back to the pulverized coal pipeline to realize the separation of pulverized coal and gas.
4,Connect the union 1 for convenience in assembly.
5,The air inlet short pipe is connected with compressed air.
6,Compressed air control valve-a switch for controlling compressed air.
7,Compressed air pressure regulating valve-Adjust this valve to control the pressure and flow of compressed air and the sampling speed. So as to realize constant-speed sampling.
8,Ejector air extractor-Using compressed air as power, the sampling tube, cyclone separator and sampling bottle generate negative pressure, so that pulverized coal can smoothly enter the cyclone separator for solid-gas separation. 9,Purge valve-Compressed air enters the pulverized coal pipeline and passes through this valve.
10,When the sampling lever is operated, the sampling tube can be expanded or hidden.
11,Sampling valve-Switch this valve to control sampling or purging the sampling tube to prevent the sampling tube from being blocked.
12,When the outer shell is installed on the pulverized coal pipeline, the sampling tube is hidden in it when not sampling.
Three.Working principle:
1.Working principle of sampling:
the hidden arm fixed pulverized coal sampling device is successfully developed by using the principles of negative pressure suction and cyclone separation to pump the gas-powder mixture out of the pulverized coal pipeline and carry out solid-gas separation. During the sampling process, the sampling tube is extended into the pulverized coal pipeline, and all valves are in the open state. When compressed air passes through the ejector air extractor from the air outlet pipeline, its jet action will inevitably lead to negative pressure in the cyclone separator, sampling tube, sampling bottle and other parts, which will urge the gas-powder mixture in the pulverized coal pipeline to enter the sampling device along the sampling tube. The gas-powder mixture will undergo solid-gas separation in the cyclone separator, and the separated pulverized coal will fall into the sampling bottle below the cyclone separator, and the gas will be pumped by the compressed air and sent to the pulverized coal pipeline again. During the whole operation, By adjusting the pressure regulating valve of compressed air before sampling, constant-speed sampling can be realized, which makes the pulverized coal sample taken out representative. (Generally, the compressed air pressure shall not exceed 0.1Mpa). 2.Anti-blocking measures: compressed air can be used to purge the sampling pipe during the use of the equipment to prevent the sampling pipe from being blocked by pulverized coal.
3.Anti-wear measures: When not sampling, the sampling tube is hidden in the outer shell and placed outside the pulverized coal pipeline. When sampling, pull the sampling operating lever, spread the sampling tube in the pulverized coal pipeline, with the sampling port facing the airflow direction of pulverized coal, and open all valves to start sampling. After sampling, pull the sampling operating lever to hide the sampling tube in the outer shell and place it outside the pulverized coal pipeline, so as to avoid the erosion of the sampling tube by pulverized coal airflow and achieve the purpose of anti-wear.
Four .Operating procedures:
1. Sampling: All valves are closed before sampling. First, open the compressed air control valve 6; Adjust the compressed air pressure regulating valve 7 according to the pressure gauge display to adjust the compressed air pressure to the required pressure range. A plate moving sampling operating lever 10; Spreading the sampling tube into the pulverized coal pipeline; Open the purge valve 9; Open the sampling valve 11; Starting sampling, sampling for 2-4 minutes; Close the compressed air control valve 6, the purge valve 9 and the sampling valve 11; Pull the sampling operating lever 10; Hide the sampling tube in the outer shell 13; Remove the sampling bottle 2; Take out the pulverized coal sample and put the sampling bottle back. Pay attention to the seal at the interface.
2. Purge: Open the compressed air control valve 6; Close the purge valve 9; Open the sampling valve 11; Compressed air will purge the sampling tube through sampling valve 11.
Five.Performance characteristics:
1.The whole product is made of stainless steel, with neat and compact appearance and long overall service life.
2, simple structure, no mechanical moving parts and maintenance-free. Simple and convenient sampling,
3.Multi-point and constant-speed sampling is adopted, and the pulverized coal samples taken out are representative.
4. Compressed air can be used to purge the sampling tube to avoid coal dust blocking the sampling tube.
5, fixed on the pulverized coal pipeline, sealed, without a trace of pulverized coal leakage, no pollution to the working environment.
6.When the sampling tube is used, it is placed in the pulverized coal pipeline. After taking the pulverized coal sample, it can be hidden outside the pulverized coal pipeline, avoiding the erosion of pulverized coal airflow and having a long service life.
7.It can be operated by one person, and the labor intensity of operators is low.
Six.Installation requirements:
1. 0.4-0.6Mpa compressed air shall be provided on site.
2. The equipment is vertically installed on the pulverized coal pipeline with an operating platform of 1000-1500mm, with a downward installation hole of 500×40mm (length× width)
(the specific size is calculated according to the parameters of pulverized coal pipeline), and the outer shell is fixed by welding the installation flange.Seven.ordering instructions:1.Provide the diameter and wall thickness of pulverized coal pipeline when ordering.
2. Operation mode (electric and manual). Eight.model description:
Example: JSMY-Y-32 stands for: hidden arm pulverized coal sampling device produced by Lianyungang Jiusheng Company, with a diameter of 32 mm.
Detailed Photos
Product Parameters
Fixed coal dust sampler technical parameters
| Sampling gun | sampling hole | Airflow speed in the pipe | compressed air pressure | Sampling time |
| φ20-25mm | ¢6-8mm | 15-30m/s | 0.3-0.4Mpa | 2-3min/time |
Company Profile
Lianyungang Jiusheng Electric Power Auxiliary Machinery Co., Ltd.
a national high-tech enterprise, is located at the foot of Jinping Mountain and beside the Qiangwei River. The factory is located in Lianyungang City, Jiangsu Province, the intersection of the the Belt and Road, and the east bridgehead of the Eurasian Continental Bridge.
It is adjacent to the 5A scenic spot of Huaguo Mountain and Liu Zhizhou Sports Park.
It is 5 kilometers away from the entrance and exit of the expressway, 13 kilometers away from the airport, and 36 kilometers away from the port.
It has convenient transportation by land, sea and air.
The company was founded in 2012 with a registered capital of 51 million yuan and an area of 20,000 square meters. It has 6 standardized industrial plants, supporting office areas, living quarters and finished goods yards, with a building area of about 11,000 square meters.
Our Advantages
Jiusheng Company has honed a sword for ten years, casting the soul of the enterprise with the spirit of craftsman.
Under the careful creation of Chairman Xie Qizhi, it has grown into a well-known enterprise in the domestic power auxiliary machinery industry.
It integrates the design, production and sales of electric auxiliary machinery, pressure vessels, chemical equipment and pipeline engineering installation services.
It has the qualification of designing & manufacturing
D1 and D2 level pressure vessel , and the qualificaton of GB2 and GC2 pipeline engineering installation.
It passedISO9001 international quality system,ISO14001 environmental health management system, ISO45001 occupational health management system certification in the industry, and also owns Madrid international trademark and product import and export qualification.
It has certain manufacturing experience in American standard and European standard pressure vessels and other products and has been recognized as a qualified supplier by more than 10 central enterprises in the industry, including CNNC, Sinopec, PetroChina, Huadian, Huaneng, China Resources, China Railway, China Energy Construction, China Power Construction, Guoneng, Everbright, etc.
Address:
No. 18, Xinba Middle Road, Industrial Park, Jinping Town, Lianyungang, Jiangsu, China
Business Type:
Manufacturer/Factory
Business Range:
Chemicals, Industrial Equipment & Components, Instruments & Meters, Manufacturing & Processing Machinery, Metallurgy, Mineral & Energy
Management System Certification:
ISO 9001, ISO 14001
Company Introduction:
The company was established in 2012 with a registered capital of 51 million yuan and covers an area of 25 acres. It has 6 standardized industrial plants and supporting office areas, living areas and finished goods yard, with a construction area of about 10, 000 square meters. Jiusheng company has been sharpening a sword in ten years, casting the soul of the enterprise with the spirit of craftsmanship. Under the careful construction of the chairman Mr. Xie Qizhi, it has grown into a power auxiliary equipment enterprise in Gangcheng. She integrates the design, production and sales of power auxiliary equipment, pressure vessels, chemical equipment and pipeline engineering installation services. It is the chairman unit of Lianyungang Power Auxiliary Equipment Industry Association. Has the design and manufacture of D1, D2 pressure vessels, GB2, GC2 pipeline engineering installation qualifications, passed the ISO9001 quality system certification and ISO14001 environmental health management system certification, ISO45001 occupational health management system certification in the industry, by China National Nuclear Corporation, Sinopec, PetroChina, Huadian, Huaneng, China Resources, China Railway, China Energy Construction, China Power Construction, National Energy, Everbright and other more than 10 central enterprises in the industry were recognized as qualified suppliers, and the company was listed in the Jiangsu Equity Exchange Center in 2018.
Since its establishment, the company has successfully developed new structures such as "special muffler for nuclear power units", "composite steam muffler", "multi-pipe fan muffler", "self-cleaning industrial water filter", "magnetic filter", "Air filter", "Low-consumption high-efficiency water jet air extractor", "Energy-saving deaerator", "High-efficiency waste heat recovery device", "Tubular oil cooler", "Intelligent rubber ball cleaning device", "Fully automatic" More than 20 series and hundreds of specifications of electric power environmental protection and energy saving equipment such as "dosing device". The company has been committed to technological innovation and product research and development, and has obtained nearly 40 product patents, including 4 invention patents. A variety of products have been recognized as national high-tech products, such as "deaerator exhaust steam waste heat recovery device", "water jet air extractor", "silencer", "water filter" and so on. The company has perfect production inspection standards, and all new products have passed the quality inspection of "Jiangsu Provincial Product Quality Inspection and Supervision Center"
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