Biomass granulator with dust and moisture removal function
Patent Information
- Application Number
- CN202522484821.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-24
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-24
AI Technical Summary
Existing biomass pellet machines lack a filtration structure at the exhaust port of the gas outlet, resulting in the direct discharge of harmful substances in the gas that cannot be filtered by spraying, thus causing environmental pollution.
A dust removal and dehumidification assembly is installed in the biomass pellet mill, including an extraction unit, a treatment tank, a spray section, an exhaust pipe, a filter box, an assembly plate, a gas filter, and an exhaust fan. The extraction unit draws in a mixture of water vapor and dust and sprays it into the treatment tank for dust suppression. The dust-suppressed gas then enters the filter box through the exhaust pipe for secondary filtration. The gas undergoes multi-stage filtration using an activated carbon adsorption layer, filter cotton, an electrostatic filter, and a HEPA filter, and is finally discharged through the exhaust pipe.
It effectively filters out harmful substances in the gas, reduces pollution to the environment, and ensures that the emitted gas meets environmental protection standards.
Smart Images

Figure CN224926239U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of biomass pellet technology, and in particular to a biomass pellet machine with dust removal and dehumidification functions. Background Technology
[0002] A biomass pellet mill is a device used to process biomass raw materials such as wood chips, straw, rice husks, and bark into high-density pellet fuel. Existing biomass pellet mills generate excessive water vapor and dust during the extrusion and pelletizing process, thus requiring dust removal and dehumidification.
[0003] The prior art (CN222468491U) discloses a biomass pellet mill with dust removal and dehumidification functions. By setting up an air intake pipe, the air intake pipe can discharge the dust and water vapor generated during the production process, preventing them from accumulating in the main body space of the pellet mill; the exhaust fan can accelerate the discharge of dust and water vapor; the water collection tank can collect the water filtered by the filter section, reducing water waste; the filter section can effectively separate dust and water; by installing a dust removal and dehumidification mechanism on the main body of the pellet mill, the effective removal of water vapor and dust generated during the extrusion pelleting process of the biomass pellet mill is ensured.
[0004] However, with the above method, since the exhaust port of the gas pipe is not equipped with a filter structure, some harmful substances in the gas that cannot be filtered by the spray will be directly discharged, leading to environmental pollution. Utility Model Content
[0005] The purpose of this invention is to provide a biomass pellet machine with dust removal and dehumidification functions, which aims to solve the problem that existing biomass pellet machines with dust removal and dehumidification functions do not have a filter structure at the exhaust port of the exhaust pipe, so some harmful substances in the gas that cannot be filtered by spraying are directly discharged, leading to environmental pollution.
[0006] To achieve the above objectives, this utility model provides a biomass pellet mill with dust removal and dehumidification functions, including a pellet mill body and a dust removal and dehumidification component. The dust removal and dehumidification assembly includes an extraction component, a treatment tank, a spray section, an outlet pipe, a filter box, an assembly plate, two mounting components, a gas filter, an exhaust fan, and an exhaust pipe. The extraction component is located on one side of the pellet mill body; the processing tank is connected to the extraction component and located on one side of the extraction component; the spray section is located on one side of the processing tank; the exhaust pipe is connected to the processing tank and located on one side of the processing tank; the filter box is connected to the exhaust pipe and located on one side of the exhaust pipe; the assembly plate is located on one side of the filter box; the two mounting components are respectively located on both sides of the assembly plate; the gas filter is located on one side of the assembly plate; the exhaust fan is connected to the filter box and located on one side of the filter box; the exhaust pipe is connected to the exhaust fan and located on one side of the exhaust fan.
[0007] The extraction component includes an extraction pipe and an industrial suction fan. The extraction pipe is connected to the main body of the pellet mill and is located on one side of the main body of the pellet mill. The industrial suction fan is connected to the extraction pipe and to the processing tank, and is located on one side of the extraction pipe.
[0008] The spray unit includes a circulating pump, a water supply pipe, a spray head, a filter screen, and a one-way valve. The circulating pump is fixedly connected to the treatment tank and located on one side of the treatment tank; the water supply pipe is connected to the circulating pump and located on one side of the circulating pump; the spray head is connected to the water supply pipe and located on one side of the water supply pipe; the filter screen is fixedly connected to the inlet of the circulating pump and located on one side of the circulating pump; and the one-way valve is connected to the circulating pump and located on one side of the circulating pump.
[0009] The mounting component includes a mounting block and a locking screw. The mounting block is fixedly connected to the assembly plate and is located on the side of the assembly plate. The locking screw is threadedly connected to the mounting block and to the filter box, and is located on one side of the mounting block.
[0010] The gas filter element includes an activated carbon adsorption layer, filter cotton, an electrostatic filter, and a HEPA filter. The activated carbon adsorption layer is fixedly connected to the assembly plate and located on one side of the assembly plate. The filter cotton is fixedly connected to the assembly plate and located on the side of the assembly plate closer to the activated carbon adsorption layer. The electrostatic filter is fixedly connected to the assembly plate and located on the side of the assembly plate closer to the filter cotton. The HEPA filter is fixedly connected to the assembly plate and located on the side of the assembly plate closer to the electrostatic filter.
[0011] This invention discloses a biomass pellet mill with dust removal and dehumidification functions. The main body of the pellet mill is used for extrusion granulation. The mixture of water vapor and dust generated during the granulation process is drawn into the processing tank by the exhaust component, and then sprayed by the spray unit to reduce dust. The dust-reduced liquid enters the bottom of the processing tank, and then the exhaust gas is discharged into the filter box through the exhaust pipe. The exhaust fan is controlled to deliver the gas to the filter box through the exhaust pipe. Two mounting components are used to fix the gas filter element on the assembly plate to the filter box. The gas undergoes secondary filtration through the gas filter element on the assembly plate in the filter box, and then is discharged through the exhaust pipe. This solves the problem of existing biomass pellet mills with dust removal and dehumidification functions, where the exhaust port of the exhaust pipe does not have a filter structure, so some harmful substances in the gas that cannot be filtered by spraying are directly discharged, leading to environmental pollution. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0014] Figure 2 This is a structural schematic diagram of the entire utility model from another angle.
[0015] Figure 3 This is a front view of the entire utility model.
[0016] Figure 4 This is a cross-sectional view of the entire utility model.
[0017] 101-Pellet mill body, 102-Extraction component, 103-Processing tank, 104-Spraying section, 105-Exhaust pipe, 106-Filter box, 107-Assembly plate, 108-Installation component, 109-Gas filter component, 110-Exhaust fan, 111-Exhaust pipe, 112-Extraction pipe, 113-Industrial suction fan, 114-Circulation pump, 115-Water supply pipe, 116-Spray head, 117-Filter screen, 118-One-way valve, 119-Installation block, 120-Locking screw, 121-Activated carbon adsorption layer, 122-Filter cotton, 123-Electrostatic filter screen, 124-HEPA filter screen. Detailed Implementation
[0018] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0019] Please see Figures 1-4 ,in, Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 2 This is a structural schematic diagram of the entire utility model from another angle. Figure 3 This is a front view of the entire utility model. Figure 4 This is a cross-sectional view of the entire utility model.
[0020] This utility model discloses a biomass pellet mill with dust removal and dehumidification functions, comprising a pellet mill body 101 and a dust removal and dehumidification assembly. The dust removal and dehumidification assembly includes an extraction component 102, a processing tank 103, a spray section 104, an exhaust pipe 105, a filter box 106, an assembly plate 107, two mounting components 108, a gas filter 109, an exhaust fan 110, and an exhaust pipe 111. The extraction component 102 includes an extraction pipe 112 and an industrial suction fan 113. The spray section 104 includes a circulating pump 114, a water supply pipe 115, and a spray nozzle. The system includes a shower head 116, a filter screen 117, and a one-way valve 118. The mounting component 108 includes a mounting block 119 and a locking screw 120. The gas filter component 109 includes an activated carbon adsorption layer 121, a filter cotton 122, an electrostatic filter screen 123, and a HEPA filter screen 124. The aforementioned solution solves the problem that existing biomass pellet machines with dust removal and dehumidification functions do not have a filtration structure at the exhaust port of the gas outlet pipe. As a result, some harmful substances in the gas that cannot be filtered by the spray are directly discharged, leading to environmental pollution.
[0021] In this specific embodiment, the pellet mill body 101 is used for extrusion granulation. The pellet mill body 101 is prior art, and for details, please refer to the patent document with publication number CN222468491U.
[0022] The granulator body 101 is configured with the following components: an extraction component 102 is located on one side of the granulator body 101; a processing tank 103 is connected to and located on one side of the extraction component 102; a spray section 104 is located on one side of the processing tank 103; an outlet pipe 105 is connected to and located on one side of the processing tank 103; a filter box 106 is connected to and located on one side of the outlet pipe 105; an assembly plate 107 is located on one side of the filter box 106; two mounting components 108 are respectively located on both sides of the assembly plate 107; a gas filter 109 is located on one side of the assembly plate 107; a blower 110 is connected to and located on one side of the filter box 106; and an exhaust pipe 111 is connected to and located on one side of the blower 110. The granulator body 101 is used for extrusion granulation, generating gas during the granulation process. The mixture of water vapor and dust is drawn into the treatment tank 103 by the extraction component 102, and then sprayed by the spray section 104 to reduce dust. The liquid after dust reduction enters the bottom of the treatment tank 103, and then the exhaust gas is discharged into the filter box 106 through the exhaust pipe 105. The exhaust fan 110 controls the gas to be delivered to the filter box 106 through the exhaust pipe 105. The two mounting parts 108 are used to fix the gas filter element 109 on the assembly plate 107 to the filter box 106. The gas undergoes secondary filtration through the gas filter element 109 on the assembly plate 107 in the filter box 106, and is then discharged through the exhaust pipe 111. This solves the problem of existing biomass pellet machines with dust removal and dehumidification functions, where the exhaust port of the exhaust pipe does not have a filter structure, so some harmful substances in the gas that cannot be filtered by spraying are directly discharged, leading to environmental pollution.
[0023] Secondly, the exhaust pipe 112 is connected to the pellet mill body 101 and is located on one side of the pellet mill body 101; the industrial suction fan 113 is connected to the exhaust pipe 112 and the processing tank 103, and is located on one side of the exhaust pipe 112. The industrial suction fan 113 is used in conjunction with the exhaust pipe 112 to draw the mixture of water vapor and dust generated during the pelletizing process into the processing tank 103 for dust removal and dehumidification treatment.
[0024] Furthermore, the circulating pump 114 is fixedly connected to the treatment tank 103 and located on one side of the treatment tank 103; the water supply pipe 115 is connected to the circulating pump 114 and located on one side of the circulating pump 114; the spray head 116 is connected to the water supply pipe 115 and located on one side of the water supply pipe 115; the filter screen 117 is fixedly connected to the inlet of the circulating pump 114 and located on one side of the circulating pump 114; the one-way valve 118 is connected to the circulating pump 114 and located on one side of the circulating pump 114. The one-way valve 118 is used to connect to the water supply equipment. The circulating pump 114 can receive liquid from the water supply equipment and can also work with the filter screen 117 to draw liquid from the treatment tank 103 for water circulation, and then transmit it to the spray head 116 through the water supply pipe 115 for spray dust suppression.
[0025] In addition, the mounting block 119 is fixedly connected to the assembly plate 107 and is located on the side of the assembly plate 107; the locking screw 120 is threadedly connected to the mounting block 119 and the filter box 106, and is located on one side of the mounting block 119. The mounting block 119 cooperates with the locking screw 120 to be threadedly connected to the filter box 106, thereby completing the assembly of the assembly plate 107 and the gas filter element 109.
[0026] Furthermore, the activated carbon adsorption layer 121 is fixedly connected to the assembly plate 107 and located on one side of the assembly plate 107; the filter cotton 122 is fixedly connected to the assembly plate 107 and located on the side of the assembly plate 107 near the activated carbon adsorption layer 121; the electrostatic filter 123 is fixedly connected to the assembly plate 107 and located on the side of the assembly plate 107 near the filter cotton 122; the HEPA filter 124 is fixedly connected to the assembly plate 107 and located on the side of the assembly plate 107 near the electrostatic filter 123. The activated carbon adsorption layer 121 is used to adsorb particles present in the gas, the filter cotton 122 is used to filter fine impurities in the gas, after filtration by the filter cotton 122, the electrostatic filter 123 adsorbs particulate matter in the gas by electrostatic force, and then the HEPA filter 124 filters particles larger than 0.3 micrometers, effectively reducing harmful substances present in industrial gases.
[0027] In using this utility model, the pellet mill body 101 is used for extrusion granulation. During the granulation process, a mixture of water vapor and dust is generated. The industrial suction fan 113, in conjunction with the extraction pipe 112, draws this mixture into the treatment tank 103 for dust removal and dehumidification. Then, the mixture is transmitted to the spray head 116 via the circulation pump 114 and water pipe 115 for spray dust suppression. The dust-suppressed liquid enters the bottom of the treatment tank 103. Exhaust gas is then discharged into the filter box 106 through the exhaust pipe 105. The suction fan 110, controlled by the exhaust pipe 105, delivers the exhaust gas to the filter box 106. The mounting block 119, in conjunction with the locking screw 120, is threadedly connected to the filter box 106. Then, the assembly plate 107 and the gas filter element 109 can be assembled. The activated carbon adsorption layer 121 is used to adsorb particles in the gas, and the filter cotton 122 is used to filter fine impurities in the gas. After filtration by the filter cotton 122, the electrostatic filter 123 adsorbs particulate matter in the gas by electrostatic force, and then the HEPA filter 124 filters particles larger than 0.3 microns, effectively reducing harmful substances in industrial gas. After filtration, the gas is discharged through the exhaust pipe 111, thus solving the problem that existing biomass pellet machines with dust removal and dehumidification functions do not have a filter structure at the exhaust port of the gas pipe, so some harmful substances in the gas that cannot be filtered by spraying are directly discharged, leading to environmental pollution.
[0028] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.
Claims
1. A biomass pellet mill with dust removal and dehumidification functions, comprising a pellet mill body, characterized in that, It also includes dust removal and dehumidification components. The dust removal and dehumidification assembly includes an extraction component, a treatment tank, a spray section, an outlet pipe, a filter box, an assembly plate, two mounting components, a gas filter, an exhaust fan, and an exhaust pipe. The extraction component is located on one side of the pellet mill body; the processing tank is connected to the extraction component and located on one side of the extraction component; the spray section is located on one side of the processing tank; the exhaust pipe is connected to the processing tank and located on one side of the processing tank; the filter box is connected to the exhaust pipe and located on one side of the exhaust pipe; the assembly plate is located on one side of the filter box; the two mounting components are respectively located on both sides of the assembly plate; the gas filter is located on one side of the assembly plate; the exhaust fan is connected to the filter box and located on one side of the filter box; the exhaust pipe is connected to the exhaust fan and located on one side of the exhaust fan.
2. A biomass pellet machine with dust removal and dehumidification functions as described in claim 1, characterized in that, The extraction component includes an extraction pipe and an industrial suction fan. The extraction pipe is connected to the main body of the pellet mill and is located on one side of the main body of the pellet mill. The industrial suction fan is connected to the extraction pipe and to the processing tank, and is located on one side of the extraction pipe.
3. A biomass pellet machine with dust removal and dehumidification functions as described in claim 2, characterized in that, The spray unit includes a circulating pump, a water supply pipe, spray heads, a filter screen, and a one-way valve. The circulating pump is fixedly connected to the treatment tank and located on one side of the treatment tank; the water supply pipe is connected to the circulating pump and located on one side of the circulating pump; the spray heads are connected to the water supply pipe and located on one side of the water supply pipe; the filter screen is fixedly connected to the inlet of the circulating pump and located on one side of the circulating pump; and the one-way valve is connected to the circulating pump and located on one side of the circulating pump.
4. A biomass pellet machine with dust removal and dehumidification functions as described in claim 3, characterized in that, The mounting component includes a mounting block and a locking screw. The mounting block is fixedly connected to the assembly plate and is located on the side of the assembly plate. The locking screw is threadedly connected to the mounting block and to the filter box, and is located on one side of the mounting block.
5. A biomass pellet machine with dust removal and dehumidification functions as described in claim 4, characterized in that, The gas filter element includes an activated carbon adsorption layer, filter cotton, an electrostatic filter, and a HEPA filter. The activated carbon adsorption layer is fixedly connected to the assembly plate and located on one side of the assembly plate. The filter cotton is fixedly connected to the assembly plate and located on the side of the assembly plate closer to the activated carbon adsorption layer. The electrostatic filter is fixedly connected to the assembly plate and located on the side of the assembly plate closer to the filter cotton. The HEPA filter is fixedly connected to the assembly plate and located on the side of the assembly plate closer to the electrostatic filter.
Citation Information
Patent Citations
Biomass granulator with dust removal and dehumidification functions
CN222468491U
