Dust removal device for kiln

Abstract

The utility model relates to the technical field of kiln dust removal, and discloses a kiln dust removal device which comprises a dust removal box, an air inlet is formed in one side of the dust removal box, an air outlet is formed in the other side of the dust removal box, a fan is connected to one side of the air outlet, a dust collecting hopper is arranged at the bottom of the dust removal box, and a pulse assembly is installed at the upper end in the dust removal box. A bag-type dust removal component is arranged at the lower end of the pulse assembly; a spring framework is mounted in the bag-type dust removal component. According to the kiln dust removal device, the spring framework is arranged in the cloth bag, so that kinetic energy can be more efficiently transmitted to the surface of the cloth bag due to vibration or reciprocating motion generated by elastic deformation of the spring framework, dust is separated from the filter bag due to high-frequency vibration, particularly, the effect on viscous dust or intractable accumulated dust is remarkable, and the blocking risk of the filter bag is reduced.

Description

Technical Field

[0001] This utility model relates to the field of kiln dust removal technology, and in particular to a kiln dust removal device. Background Technology

[0002] A kiln is an industrial device that uses high-temperature heating to achieve physical changes or chemical reactions in materials. It is widely used in metallurgy, building materials, chemical industry, ceramics and other fields. For example, cement kilns calcine raw materials such as limestone and clay into cement clinker at high temperatures; metallurgical kilns melt ores to extract metals (such as blast furnace ironmaking); and ceramic kilns dry green bodies to remove moisture and prevent cracking.

[0003] Existing technology application number 201921722443.6 discloses a dry bag filter dust collector for kiln flue gas. By fixing a first and second bracket inside the shell, it is easy to fix the bag cage and filter bag inside. At the same time, by setting a top plate inside the second bracket, and the cooperation between the top plate and the compression spring, it is easy to replace and disassemble the filter bag, avoiding time and effort during replacement and maintenance. It also greatly improves the use effect and working efficiency of the bag filter dust collector, and meets the user's needs.

[0004] Regarding the above and existing related technologies, the inventors believe that the following defects often exist: When bag dust collectors only use pulse jet cleaning for dust removal, the dust removal is easily incomplete due to insufficient bag deformation and strong dust adhesion, resulting in bag pore blockage, which affects dust removal efficiency and equipment operating resistance. Utility Model Content

[0005] The technical problem to be solved by this utility model is that the existing technology has the disadvantage that dust with strong adhesion is easy to stick to the cloth bag, causing blockage of the cloth bag pores and affecting the dust removal effect. To this end, we propose a kiln dust removal device.

[0006] To achieve the above objectives, this application adopts the following technical solution: a kiln dust removal device, comprising: a dust removal box, an air inlet on one side of the dust removal box, an air outlet on the other side of the dust removal box, a fan connected to one side of the air outlet, a dust collection hopper at the bottom of the dust removal box, a pulse assembly installed at the upper end of the dust removal box, a bag filter component installed at the lower end of the pulse assembly, and a spring frame installed inside the bag filter component.

[0007] Preferably, the pulse assembly includes a pulse connecting pipe, a pulse nozzle is provided on the pulse connecting pipe, a carrier plate is provided at the lower end of the pulse nozzle, and the bag filter dust collector is installed on the carrier plate.

[0008] Preferably, a venturi tube is provided below the pulse nozzle.

[0009] Preferably, the bag filter component includes a bag with a fixing ring connected to the upper end of the bag.

[0010] Preferably, the spring frame includes a spring body, with a metal ring installed at the top of the spring body and a rubber ring installed at the bottom of the spring body.

[0011] Preferably, the top of the fixing ring is provided with a threaded hole one, and the top of the metal ring is provided with a threaded hole two.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] In this invention, by setting a spring frame in the filter bag, the vibration or reciprocating motion generated by the elastic deformation of the spring frame can more efficiently transfer kinetic energy to the surface of the filter bag, causing dust to detach from the filter bag due to high-frequency vibration. This is especially effective for sticky dust or stubborn ash accumulation, reducing the risk of filter bag clogging. Attached Figure Description

[0014] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the pulse assembly installation structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the installation structure of the bag filter component of this utility model;

[0019] Figure 5 This is a three-dimensional structural diagram of the spring skeleton of this utility model.

[0020] Legend: 1. Air inlet; 2. Air outlet; 3. Fan; 4. Dust collector box; 5. Ash hopper; 6. Pulse assembly; 61. Pulse connecting pipe; 62. Pulse nozzle; 63. Venturi tube; 64. Carrier plate; 7. Bag dust collector components; 71. Bag; 72. Fixing ring; 73. Threaded hole one; 8. Spring frame; 81. Spring body; 82. Metal ring; 83. Rubber ring; 84. Threaded hole two. Detailed Implementation

[0021] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0022] Reference Figures 1-2 As shown, this utility model provides a technical solution: a kiln dust removal device, including: a dust removal box 4, an air inlet 1 on one side of the dust removal box 4, an air outlet 2 on the other side of the dust removal box 4, a fan 3 connected to one side of the air outlet 2 via a flange, a dust collection hopper 5 at the bottom of the dust removal box 4, and a pulse assembly 6 installed at the upper part of the inside of the dust removal box 4.

[0023] Reference Figures 3-4 As shown in this embodiment: a bag filter component 7 is provided at the lower end of the pulse assembly 6. A spring frame 8 is installed inside the bag filter component 7. The pulse assembly 6 includes a pulse connecting pipe 61, which is connected to a pulse air pump. Multiple pulse nozzles 62 are evenly arranged on the pulse connecting pipe 61. Air is blown into the pulse connecting pipe 61 by the pulse air pump, and the gas in the pulse connecting pipe 61 is sprayed out from the pulse nozzles 62, thereby cleaning the bag filter component 7 below. A venturi tube 63 is provided below each pulse nozzle 62 to converge the compressed air sprayed by the pulse nozzle 62 into a high-speed airflow and accurately guide it into the bag filter component 7 to ensure concentrated cleaning energy. A carrier plate 64 is provided at the lower end of the venturi tube 63. The bag filter component 7 is installed on the carrier plate 64 by screws. Each venturi tube 63 corresponds to one bag filter component 7.

[0024] Reference Figure 5 As shown, the bag dust collector component 7 includes a bag 71. Each bag 71 has a fixing ring 72 connected to its upper end by a buckle. The fixing ring 72 is a hollow ring and is divided into male and female parts. The bag 71 is clamped in the middle and locked by pressing the buckle. The top of the fixing ring 72 is provided with a threaded hole 73.

[0025] Reference Figure 5 As shown, the spring frame 8 includes a spring body 81. A metal ring 82 is fixedly installed on the top of the spring body 81 by welding. The top of the metal ring 82 is provided with a second threaded hole 84. A rubber ring 83 is fixedly installed on the bottom of the spring body 81. During installation, the spring frame 8 is inserted into the bag 71, so that the rubber ring 83 is close to the bottom of the bag 71 and the metal ring 82 is close to the fixing ring 72. The second threaded hole 84 is aligned with the first threaded hole 73, and the bag dust collector component 7 and the spring frame 8 are installed on the carrier plate 64 by screws.

[0026] Working principle: When using the bag filter dust collector, the user connects the flue gas generated by the kiln to the inlet 1, allowing the flue gas to enter the dust collector 4. Large dust particles inside the flue gas fall into the dust collection hopper 5 due to gravity. Fine dust particles rise with the flue gas and pass through the bag filter component 7, where they are blocked on the surface of the filter bags 71. The gas filtered by the filter bags 71 is then drawn out by the fan 3 through the outlet 2. As dust accumulates on the surface of the filter bags 71, the pulse component 6 begins to clean them. The pulse air pump delivers compressed air to the pulse connecting pipe 61, and the gas in the pulse connecting pipe 61 is sprayed out from the pulse nozzle 62, spraying towards the bag filter component 7 below. The filter bags 71 expand and vibrate, causing the dust adhering to their surface to fall into the dust collection hopper 5. The spring frame 8 inside the bag filter component 7 also reciprocates due to the pulse, which in turn causes the filter bags 71 to vibrate multiple times, causing the stubborn dust on the filter bags to fall off due to the high-frequency vibration.

[0027] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A kiln dust removal device, characterized in that, Includes a dust collector: an air inlet is provided on one side of the dust collector, an air outlet is provided on the other side of the dust collector, a fan is connected to one side of the air outlet, a dust collection hopper is provided at the bottom of the dust collector, a pulse assembly is installed at the upper part of the interior of the dust collector, a bag filter dust collector is provided at the lower part of the pulse assembly, and a spring frame is installed inside the bag filter dust collector.

2. The kiln dust removal device according to claim 1, characterized in that: The pulse assembly includes a pulse connecting pipe, a pulse nozzle is provided on the pulse connecting pipe, a carrier plate is provided at the lower end of the pulse nozzle, and the bag filter dust collector is mounted on the carrier plate.

3. The kiln dust removal device according to claim 2, characterized in that: A venturi tube is provided below the pulse nozzle.

4. The kiln dust removal device according to claim 1, characterized in that: The bag filter component includes a filter bag, and a fixing ring is connected to the upper end of the filter bag.

5. The kiln dust removal device according to claim 4, characterized in that: The spring frame includes a spring body, a metal ring is installed on the top of the spring body, and a rubber ring is installed on the bottom of the spring body.

6. The kiln dust removal device according to claim 5, characterized in that: The top of the fixing ring is provided with a threaded hole one, and the top of the metal ring is provided with a threaded hole two.

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