Straw carbonization smoke dust treatment device

Abstract

The utility model discloses a straw carbonization smoke dust treatment device, and belongs to the technical field of smoke dust treatment. Comprising a dust separating device and a smoke filtering device, the dust separating device and the smoke filtering device are connected through a centrifugal fan and a connecting pipe, the dust separating device comprises at least one cyclone separator, a smoke inlet pipeline of the cyclone separator is connected with a carbonization chamber, and a smoke outlet pipeline of the cyclone separator is connected with the centrifugal fan. The centrifugal fan is connected with the smoke filtering device through a pipeline, and a dust collecting barrel is arranged below the cyclone separator. The device can effectively remove dust, tar and the like generated by combustion and carbonization of straws, enables flue gas to reach a reasonable emission standard, and has the advantages of simple structure, low cost, high treatment efficiency, low energy consumption, convenience in maintenance and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of smoke treatment, and particularly relates to a smoke treatment device for field straw carbonization, which can effectively remove dust, tar and the like generated by combustion. Background Art

[0002] Straw carbonization is an important way to utilize straw. However, a large amount of smoke and dust will be generated during the straw carbonization process, which contains harmful particles and gases, causing serious pollution and harm to the environment and human health. Therefore, it is very necessary to effectively treat and purify the smoke and dust.

[0003] At present, the commonly used methods for treating smoke dust include cyclone separation, filtration, and electrostatic precipitator. The cyclone separation method uses the centrifugal force generated by the cyclone separator to separate large particles of impurities in the smoke dust, thereby reducing the concentration of smoke dust. The filtration method uses the pores of the filter material to intercept the fine particles in the smoke dust when the smoke passes through, thereby achieving the purpose of purification. The electrostatic precipitator uses a high-voltage electric field to charge the smoke dust, and then under the action of the electric field, the smoke dust is adsorbed on an electrode with an opposite charge, thereby achieving the effect of dust removal.

[0004] The above existing technologies have their own advantages and disadvantages, but all of them have some problems, such as the cyclone separation method cannot effectively remove fine particles, the filtration method easily causes clogging and loss of the filter material, and the electrostatic precipitator method requires a high-voltage power supply and a complex control device. Therefore, a smoke treatment device is needed that can take into account the advantages of the cyclone separation method, the filtration method, etc., while avoiding or reducing their disadvantages. Utility Model Content

[0005] In view of the above-mentioned technical problems, the utility model provides a smoke treatment device for field straw carbonization. The device adopts a smoke treatment method that combines cyclone separation and filtration methods, which can effectively remove dust, tar, etc. produced by combustion. It has the advantages of simple structure, low cost, high treatment efficiency, low energy consumption, and easy maintenance.

[0006] The purpose of this utility model is achieved through the following technical solutions:

[0007] The utility model discloses a smoke treatment device for straw carbonization, comprising a dust separation device and a smoke filter device, wherein the dust separation device and the smoke filter device are connected through a centrifugal fan and a connecting pipe, the dust separation device comprises at least one cyclone separator, the smoke inlet pipe of the cyclone separator is connected to a carbonization chamber, the smoke outlet pipe of the separator is connected to the centrifugal fan, the centrifugal fan is connected to the smoke filter device through a pipeline, and a dust collecting cylinder is arranged below the cyclone separator.

[0008] Furthermore, when multiple cyclone separators are provided, they are connected in parallel, and their smoke inlet pipes are connected to a smoke inlet main pipe, which is connected to the carbonization chamber through the smoke inlet main pipe. The smoke outlets of the separators are connected to a smoke outlet main pipe through the separator smoke outlet pipes, which is connected to the centrifugal fan through the smoke outlet main pipe. A dust collection barrel is provided under each cyclone separator.

[0009] Furthermore, the smoke filtering device is a box structure, with multiple layers of removable filter element slots arranged in the box frame, and the support bars are arranged at the bottom ends of both sides of the outer frame of the filter element slots in the box frame. When working, the filter element is filled in the filter element slots.

[0010] Furthermore, the lower end of the filter element slot is a mesh structure, and the upper end is open for filling the filter element.

[0011] Furthermore, a filter tank support bar is provided on the box frame to fix and support the filter core tank.

[0012] Furthermore, a sealing ring is provided at a position where the pull-out side of the filter core groove contacts the outer side of the box frame.

[0013] Furthermore, the filter core grooves of each layer are symmetrically distributed in the box frame, dividing the box into two parts of equal size.

[0014] The beneficial effects of the utility model are:

[0015] 1. The smoke treatment device of the utility model can effectively remove dust, tar, etc. generated by burning crop straw, purify the smoke, meet reasonable emission standards, and reduce environmental pollution and human harm;

[0016] 2. The smoke treatment device of the utility model adopts a combination of a cyclone separator and a filter device, which can not only separate large particles of dust, but also filter out fine particles, tar, etc., achieving a multi-level effect of smoke treatment;

[0017] 3. The smoke treatment device of the utility model uses straw biochar, chopped straw, etc. as filter materials. These materials have good adsorption performance and are low-cost. The filter materials are used for adsorption for a certain period of time and then burned and carbonized. It can save resources and reduce waste;

[0018] 4. The smoke and dust treatment device of the utility model has a simple structure, stable operation, high treatment efficiency, low cost and convenient maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the front view of the smoke treatment device.

[0020] Figure 2 This is the left view of the smoke treatment device.

[0021] Figure 3 This is a top view of the smoke treatment device.

[0022] Figure 4 Schematic diagram of the filter element slot sealing position.

[0023] Figure 5 It is a schematic diagram of the cross section of a single filter element in the filter element slot.

[0024] In the figure: 1. Cyclone separator 2. Impurity collection cylinder 3. Smoke inlet main pipe 4. Connecting flange 5. Bracket 6. Centrifugal fan 7. Smoke filter 8. Support bar 9. Filter element slot 10. Rain shield 11. Filter air inlet pipe 12. Smoke outlet main pipe 13. Separator smoke outlet pipe 14. Handle 15. Filter element 16. Seal. DETAILED DESCRIPTION

[0025] The utility model is described in detail below with reference to the accompanying drawings and embodiments.

[0026] Example: Figure 1 , Figure 2 As shown, the utility model is a smoke treatment device, including a dust separation device and a smoke filtering device, the dust separation device and the smoke filtering device are connected by a centrifugal fan and a connecting pipe, the dust separation device includes at least one cyclone separator 1, the smoke inlet pipe of the cyclone separator 1 is connected to the carbonization chamber, and the separator smoke outlet pipe 13 is connected to the centrifugal fan 6, the centrifugal fan 6 is connected to the smoke filtering device through a pipeline, and a dust collecting cylinder is arranged below the cyclone separator 1.

[0027] Preferably, Figure 3 As shown, when multiple cyclone separators 1 are provided, they are connected in parallel, and their smoke inlet pipes are connected to a smoke inlet main pipe 3, which is connected to the carbonization chamber through the smoke inlet main pipe 3, and the smoke outlet of the separator is connected to a smoke outlet main pipe 12 through the separator smoke outlet pipe 13, which is connected to the centrifugal fan 6 through the smoke outlet main pipe 12, and a dust collecting barrel 2 is provided under each cyclone separator 1. The dust collecting barrel 2 is connected to the cyclone separator 1 through a connecting flange 4, which is used for regular disassembly and discharge of impurities. In this example, there are four cyclone separators 1.

[0028] Preferably, Figure 1 , Figure 4 , Figure 5 As shown, the smoke filtering device is a box structure, which consists of a multi-layer pull-out filter element slot 9 arranged in the box frame, and the support bars 8 are arranged at the bottom ends of both sides of the outer frame of the filter element slot 9 in the box frame. The filter element 15 is arranged in the filter element slot 9 when working.

[0029] Preferably, the lower end of the filter element slot 9 is a mesh structure, and the upper end is open, for placing the filter material 15. The filter element slot support bar 8 is used to fix and support the filter element slot 9.

[0030] Preferably, a sealing ring 16 is provided at the position where the pulling side of the filter element slot 9 contacts the outer side of the box frame to prevent smoke from escaping and ensure a sealing effect.

[0031] Preferably, a filter element slot support bar 8 is provided on the box frame for fixing and supporting the filter element slot 9 .

[0032] The centrifugal fan 6 in this example is a high-pressure centrifugal fan.

[0033] The filter element 15 is made of existing purchased parts, or is made of a mixture of straw biochar and chopped straw, or is made of biochar alone or chopped straw alone. In this example, the bottom layer of the filter element 15 is filled with chopped straw with a length of 20mm to 50mm to absorb larger particles, the middle layer is filled with chopped straw with a length of 10mm to 20mm to absorb fine particles, and the top layer is filled with straw biochar to absorb toxic gases generated by combustion, which can be adjusted according to actual needs.

[0034] After the filter material has been used for a certain period of adsorption, it can be burned to prepare biochar, thereby reducing waste and saving energy resources.

[0035] The filter element slot 9 is designed to be a pull-out replacement type. When the filter element 15 material needs to be replaced, the filter element slot 9 is pulled out, the old filter element 15 material is taken out, and the new filter element 15 material is filled. The filter element slot 9 and the filter element 15 are specifically distributed symmetrically in the box body, dividing the box body into two parts of equal size, and the filter element slot 9 and the filter element 15 are evenly arranged in layers inside the box body.

[0036] The operation process of the smoke treatment device of the utility model is as follows:

[0037] The smoke generated by combustion enters the four cyclone separators 1 from the main air inlet pipe located in the center of the four cyclone separators 1. After being processed by the cyclone separators 1, the large particles of impurities enter the dust collection barrel 2 located at the bottom of the four cyclone separators 1, and the remaining smoke enters the smoke filter device through the high-pressure centrifugal fan 6;

[0038] In the flue gas filtering device, the flue gas passes through the filter element 15 arranged in layers. The filter element 15, which is a mixture of straw biochar, chopped straw, etc., can absorb and intercept fine particles, tar, and harmful gases in the smoke, thereby achieving the purpose of purification. The filtered flue gas is discharged from the outlet.

[0039] When the adsorption performance of the filter element 15 material decreases, the normal operation of the smoke treatment device can be ensured by replacing the filter element 15 material.

[0040] It can be understood that the above specific description of the utility model is only used to illustrate the utility model and is not limited to the technical solution described in the embodiments of the utility model. Ordinary technicians in the field should understand that the utility model can still be modified or replaced by equivalents to achieve the same technical effect; as long as the use requirements are met, they are within the protection scope of the utility model.

Claims

1. A straw carbonization smoke treatment device, characterized in that: It includes a dust separation device and a smoke filter device, which are connected by a centrifugal fan and a connecting pipe. The dust separation device includes at least one cyclone separator. The smoke inlet pipe of the cyclone separator is connected to the carbonization chamber, and the smoke outlet pipe of the separator is connected to the centrifugal fan. The centrifugal fan is connected to the smoke filter device through a pipeline, and a dust collection cylinder is arranged below the cyclone separator.

2. The smoke treatment device according to claim 1, characterized in that: When multiple cyclone separators are provided, they are connected in parallel, with their smoke inlet pipes connected to a smoke inlet main pipe, which is connected to the carbonization chamber through the smoke inlet main pipe, and the separator smoke outlets connected to a smoke outlet main pipe through the separator smoke outlet pipes, which is connected to the centrifugal fan through the smoke outlet main pipe, and a dust collection cylinder is provided under each cyclone separator.

3. The smoke treatment device according to claim 1, characterized in that: The smoke filtering device is a box structure, with multiple layers of removable filter element slots arranged in the box frame, and support bars are arranged at the bottom ends of both sides of the outer frame of the filter element slots in the box frame. When working, the filter element is filled in the filter element slot.

4. The smoke treatment device according to claim 3, characterized in that: The lower end of the filter element slot is a mesh structure, and the upper end is open for filling the filter element.

5. The smoke treatment device according to claim 3, characterized in that: The box frame is provided with a filter core slot support bar to fix and support the filter core slot.

6. The smoke treatment device according to claim 3, characterized in that: A sealing ring is provided at a position where the pull-out side of the filter element groove contacts the outer side of the box frame.

7. The smoke treatment device according to claim 3, characterized in that: The filter element slots of each layer are symmetrically distributed in the box frame, dividing the box into two parts of equal size.

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