Pulse dust removal device for dust

Abstract

The utility model belongs to the technical field of industrial dust removal, and discloses a pulse dust removal device for dust, which comprises a pulse dust remover, an air purification chamber, a pattern plate, a dust air chamber and filter bags are arranged in a box body, the dust air chamber is communicated with the air purification chamber through the filter bags uniformly distributed in the dust air chamber, the air purification chamber is provided with a vertical partition plate, and the partition plate divides the air purification chamber into a plurality of partition cavities. One or two groups of blowing pipes are arranged in each separation cavity, each separation cavity is provided with an outlet which is communicated with the purified gas outlet, an independent differential pressure sensor is arranged in each separation cavity, and the controller is connected with the differential pressure sensor and the electromagnetic pulse valve. And the problems of low efficiency and frequent maintenance of traditional dust removal equipment are effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of industrial dust removal technology, specifically to a pulse dust removal device for dust. Background Technology

[0002] Allulose preparation typically uses starch as a raw material. Starch processing generates a large amount of dust, which, if not properly handled, can not only affect the production environment but also potentially harm the health of operators. Currently, dust removal equipment used in starch packaging workshops mostly employs mechanical vibration or back-blowing to remove dust from the surface of filter bags. Existing dust removal equipment suffers from problems such as incomplete cleaning, high energy consumption, and easy wear of filter bags. Especially during continuous production, dust easily accumulates on the surface of the filter bags, reducing dust removal efficiency and requiring frequent shutdowns for maintenance, severely impacting production efficiency. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a pulse dust collector for dust removal. By optimizing the pulse jet structure, it can achieve targeted filter bag blowing operations, thereby reducing energy consumption and enabling continuous dust removal while reducing maintenance costs.

[0004] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0005] A pulse dust collector for dust removal includes a pulse dust collector, which comprises a housing and a controller. The housing contains a clean air chamber, a tube sheet, a dust chamber, and filter bags. The dust chamber has a dust inlet and a dust outlet at its lower end. The dust chamber is connected to the clean air chamber via filter bags evenly distributed within it. The clean air chamber contains multiple sets of blowpipes, each set equipped with an electromagnetic pulse valve. The clean air chamber has a clean air outlet and is divided into multiple compartments by vertical partitions. Each compartment contains one or two sets of blowpipes and has an outlet connected to the clean air outlet. Each compartment contains a separate differential pressure sensor. The controller is connected to the differential pressure sensor and the electromagnetic pulse valve.

[0006] The device also includes cyclone separator I and cyclone separator II. The feed auger enters the feed inlet of cyclone separator I through a positive pressure fan. The dust outlet of cyclone separator I is connected to the feed inlet of cyclone separator II. The discharge outlets of cyclone separator I and cyclone separator II are connected to a starch vibrating screen. The discharge outlet of the starch vibrating screen is connected to a starch tank. The dust outlet of cyclone separator II is connected to the dust inlet of a pulse dust collector through a pipeline.

[0007] Furthermore, a diversion plate is provided above the dust inlet below the filter bag in the dust chamber. The diversion plate consists of multiple vertical plates, and the airflow is divided into multiple streams flowing into the dust chamber where the filter bag is located.

[0008] Furthermore, the number of airflow streams divided by the flow divider is the same as the number of cavities, and the number of flow dividers is the same as the number of cavities.

[0009] Furthermore, the filter bag is a double-layer composite filter bag, with an outer layer of polyester fiber and an inner layer of PTFE membrane.

[0010] The controller integrates a PLC module, which supports controlling the start and stop of the corresponding blowpipes according to the differential pressure signal, and has an RS485 communication interface to support remote monitoring and fault alarm functions.

[0011] The dust outlet of the dust chamber is equipped with a screw unloader with a unloading efficiency of ≥200kg / h.

[0012] The beneficial effects of this utility model are as follows:

[0013] Compared to traditional dust removal equipment, this system thoroughly removes dust from the surface of filter bags by precisely controlling high-pressure pulse jet cleaning, reducing system resistance by 30% and achieving a dust removal efficiency of ≥99.5%. The double-layer filter bag design balances filtration accuracy and durability, extending its service life to over 2 years. Based on the air pressure conditions of different chambers, it accurately determines whether a particular chamber needs filter bag cleaning, reducing energy consumption. Attached Figure Description

[0014] To more clearly illustrate the technical solution of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. The accompanying drawings described below will take the pulse dust removal of starch drying as an example, and the principle of other auxiliary materials is the same.

[0015] Figure 1 Here is a schematic diagram of the structure of an embodiment of this utility model:

[0016] Figure 2 This is a schematic diagram of the pulse dust collector of this utility model;

[0017] Figure 3 for Figure 2 A schematic diagram of the lateral structure.

[0018] 1-Pulse dust collector, 2-Cyclone separator I, 3-Cyclone separator II, 4-Starch vibrating screen, 5-Feed auger, 6-Screw unloader, 7-Support, 11-Box body, 12-Tube plate, 13-Clean air chamber, 14-Dust chamber, 15-Filter bag, 16-Partition plate, 17-Bridging chamber, 18-Pulse jet pipe, 19-Diverter plate, 21-Dust inlet, 22-Clean air outlet, 23-Solenoid pulse valve, 24-Controller, 25-Dust collection hopper. Detailed Implementation

[0019] As attached Figure 1 , 2As shown in Figure 3, a pulse dust collector for dust removal includes a pulse dust collector 1. The pulse dust collector 1 includes a housing 11 and a controller 24. A support 7 is provided below the housing 11. The housing 11 contains a clean air chamber 13, a tube sheet 12, a dust chamber 14, and filter bags 15. The dust chamber 14 has a dust inlet 21 and a dust outlet at its lower end. The dust chamber 14 is connected to the clean air chamber 13 through the filter bags 15 evenly distributed within it. The clean air chamber 13 contains filter bags 15. Multiple sets of blow pipes 18 are provided, each set of blow pipes 18 is equipped with an electromagnetic pulse valve 23, the clean air chamber 13 is equipped with a clean air outlet 22, the clean air chamber 13 is equipped with a vertical partition 16, the partition 16 divides the clean air chamber 13 into multiple compartments 17, each compartment 17 is equipped with one or two sets of blow pipes 18, the compartment 17 is equipped with an outlet connected to the clean air outlet 22, each compartment 17 is equipped with an individual differential pressure sensor, and the controller is connected to the differential pressure sensor and the electromagnetic pulse valve 23.

[0020] The device also includes cyclone separator I 2 and cyclone separator II 3. The feed auger 5 enters the feed inlet of cyclone separator I through a positive pressure fan. The dust outlet of cyclone separator I is connected to the feed inlet of cyclone separator II. The discharge outlets of cyclone separator I and cyclone separator II are connected to starch vibrating screen 4. The discharge outlet of starch vibrating screen 4 is connected to starch tank and enters the packaging scale for packaging. The dust outlet of cyclone separator II is connected to the dust inlet 21 of pulse dust collector 1 through a pipeline.

[0021] Furthermore, a diversion plate 19 is provided above the dust inlet 21 below the filter bag 15 in the dust chamber 14. The diversion plate 19 consists of multiple vertical plates, and the airflow is divided into multiple streams by the diversion plate 19 and flows to the dust chamber 14 where the filter bag 15 is located.

[0022] Furthermore, the number of airflow streams divided by the diverter plate 19 is the same as the number of cavities 17, the number of diverter plates 19 is the same as the number of cavities 16, and the positions of the cavities and the diverter plates are vertically aligned. This ensures that the impact airflow coming from the lower end of the filter bag in the area below the cavities comes from the same stream. In addition to diverting the airflow, the diverter plate 19 can also counteract the impact force of the airflow, causing large dust particles to be blocked and fall into the dust collection hopper.

[0023] Furthermore, the filter bag 15 is a double-layer composite filter bag 15, with an outer layer of polyester fiber and an inner layer of PTFE membrane.

[0024] The controller integrates a PLC module, which supports controlling the start and stop of the corresponding blowpipe 18 according to the differential pressure signal, and has an RS485 communication interface to support remote monitoring and fault alarm functions.

[0025] The dust outlet of the dust chamber 14 is equipped with a screw unloader 6 with an unloading efficiency of ≥200kg / h.

[0026] The electromagnetic pulse valve 23 is connected to a compressed air storage tank with a volume of 2.5m³, and is equipped with a pressure sensor and a safety valve.

[0027] Compared to traditional mechanical rapping or back-blowing methods for removing dust from the surface of filter bags 15, this design uses pulse dust collection. High-pressure pulse jets thoroughly remove dust from the surface of filter bags 15, reducing system resistance by 30% and achieving a dust removal efficiency of ≥99.5%. The double-layer filter bag design balances filtration accuracy and durability, extending service life to over two years. When the rapid airflow enters the dust chamber 14 of the baghouse dust collector, the impact force on filter bags 15 varies at different locations, resulting in varying airflow resistance. Using only a single differential pressure sensor in the clean air chamber 13 can easily lead to some filter bags 15 becoming severely clogged without triggering pulse jets, affecting filtration efficiency and making cleaning difficult, thus shortening the lifespan of the filter bags 15. By setting up a separate differential pressure sensor in the diaphragm chamber 17, the detection range can be narrowed, control accuracy improved, and the resistance of the entire filter bag system to the filtration airflow balanced, ensuring continuous filtration efficiency and reducing maintenance costs.

[0028] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements can be made without departing from the principle of the present utility model. These improvements should also be considered within the scope of protection of the present utility model without creative effort.

Claims

1. A pulse dust collector for dust removal, comprising a pulse dust collector, the pulse dust collector including a housing and a controller, the housing containing a clean air chamber, a tube sheet, a dust chamber, and filter bags, the dust chamber having a dust inlet and a dust outlet at its lower end, the dust chamber being connected to the clean air chamber via filter bags evenly distributed within the dust chamber, the clean air chamber containing multiple sets of blowpipes, each set of blowpipes being equipped with an electromagnetic pulse valve, and the clean air chamber having a clean air outlet, characterized in that: The clean air chamber is equipped with vertical partitions that divide the clean air chamber into multiple compartments. Each compartment is equipped with one or two sets of blow pipes. Each compartment is equipped with an outlet that is connected to the clean air outlet. Each compartment is equipped with an individual differential pressure sensor. The controller is connected to the differential pressure sensor and the electromagnetic pulse valve.

2. The pulse dust collector for dust removal according to claim 1, characterized in that: The device also includes cyclone separator I and cyclone separator II. The feed auger enters the feed inlet of cyclone separator I through a positive pressure fan. The dust outlet of cyclone separator I is connected to the feed inlet of cyclone separator II. The discharge outlets of cyclone separator I and cyclone separator II are connected to a starch vibrating screen. The discharge outlet of the starch vibrating screen is connected to a starch tank. The dust outlet of cyclone separator II is connected to the dust inlet of a pulse dust collector through a pipeline.

3. The pulse dust collector for dust removal according to claim 1, characterized in that: A flow divider is installed above the dust inlet below the filter bag in the dust chamber. The flow divider consists of multiple vertical plates, which divide the airflow into multiple streams that flow towards the dust chamber where the filter bag is located.

4. The pulse dust collector for dust removal according to claim 3, characterized in that: The number of airflow streams divided by the flow divider is the same as the number of cavities, and the number of flow dividers is the same as the number of cavities.

5. The pulse dust collector for dust removal according to claim 1, characterized in that: The filter bag is a double-layer composite filter bag, with an outer layer of polyester fiber and an inner layer of PTFE membrane.

6. The pulse dust collector for dust removal according to claim 1, characterized in that: The controller integrates a PLC module and has an RS485 communication interface.

7. The pulse dust collector for dust removal according to claim 1, characterized in that: The dust outlet of the dust chamber is equipped with a screw unloader.

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