Biomass pyrolysis pretreatment equipment

Abstract

The utility model discloses biomass pyrolysis pretreatment equipment, which relates to the field of pyrolysis pretreatment equipment and comprises a material box, the bottom of the material box is provided with a plurality of funnel-shaped material guide grooves, and the bottom of the material box is fixedly provided with material pipes corresponding to the positions of the material guide grooves. A hollow heating cavity is formed below the material box, the material pipe fixedly penetrates through the interior of the heating cavity, two ventilation pipes are installed on the surface of the heating cavity, a sealing door capable of being closed is installed at the bottom of the heating cavity, and the surface of the material box is fixedly connected with a sealing box in a sleeved mode. According to the biomass pyrolysis pretreatment equipment disclosed by the utility model, through the arrangement of the material guide groove, the heating cavity and the material pipes, high temperature generated by the combustion chamber is introduced into the ventilation pipe, materials are put into the material box, and raw materials enter the material box and are equally divided into the material pipes through the material guide groove; and at the moment, the high-temperature gas flows in the heating cavity, so that the raw materials are uniformly heated.

Description

Technical Field

[0001] The utility model relates to the field of pyrolysis pretreatment equipment, in particular to a biomass pyrolysis pretreatment equipment. Background Technique

[0002] Biomass includes all plants, microorganisms, animals that feed on plants and microorganisms, and their produced wastes. It is the only renewable carbon resource, with significant advantages such as wide sources and rich reserves. By using advanced biomass thermochemical conversion technologies, various high-value fuels, chemicals, and carbon-based materials can be obtained, thereby realizing partial substitution of fossil resources and having an important strategic position and development prospect in the new energy field. Carbonizing biomass facilitates its use.

[0003] By heating biomass at high temperature to carbonize it, usually the raw materials are first crushed and placed in a high-temperature environment, and the biomass is carbonized by means of heat exchange. The carbonization needs to be carried out in an anoxic or oxygen-free environment, which can be achieved by passing high-temperature oxygen-free gas through the biomass or directly heating the biomass in an oxygen-free environment. However, it is difficult to make better use of heat, and it is also difficult to heat the biomass more evenly. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a biomass pyrolysis pretreatment equipment, which can effectively solve the problems in the background technique.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: a biomass pyrolysis pretreatment equipment, including a material box, a plurality of funnel-shaped material guiding grooves are opened at the bottom of the material box, a material pipe is fixedly installed at the bottom of the material box corresponding to each material guiding groove, a hollow heating cavity is arranged below the material box, the material pipe fixedly penetrates through the inside of the heating cavity, two air inlet pipes are installed on the surface of the heating cavity, and a closable sealing door is installed at the bottom of the heating cavity.

[0006] A sealing box is fixedly sleeved on the surface of the material box, a gap is arranged between the sealing box and the material box, the air inlet pipe communicates with the inside of the sealing box, and an exhaust pipe is installed on the surface of the sealing box.

[0007] Two oxygen-free pipes are fixedly installed on the surface of the material box, and both of the two oxygen-free pipes fixedly penetrate through the surface of the sealing box.

[0008] A feed inlet is opened at the top of the material box, a material guiding box is fixedly installed at the position of the feed inlet, and the material guiding box is arranged in a funnel shape.

[0009] The material guiding grooves are linearly arrayed in a pentagon in the material box, and a vibrator can also be arranged inside the material box.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. In the utility model, by arranging a material guiding groove, a heating cavity and a material pipe, the high temperature generated by the combustion chamber is introduced into the inside of the ventilation pipe. When materials are put into the inside of the material box, the raw materials enter the material box and are equally divided into each material pipe through the material guiding groove. At this time, the high-temperature gas flows inside the heating cavity, so as to realize uniform heating of the raw materials.

[0012] 2. In the utility model, by arranging a ventilation pipe and a sealing cavity, the used high-temperature gas enters the inside of the sealing box through the ventilation pipe, and the waste heat is used to preheat the raw materials, improve the initial temperature of the raw materials when they are added into the material pipe, indirectly improve the heating efficiency, and also avoid waste of energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of a biomass pyrolysis pretreatment device of the utility model;

[0014] Figure 2 is a schematic diagram of a partial structure inside the sealing box of a biomass pyrolysis pretreatment device of the utility model;

[0015] Figure 3 is a schematic diagram of a partial structure at the position of the material pipe of a biomass pyrolysis pretreatment device of the utility model;

[0016] Figure 4 is a schematic diagram of a partial structure at the position of the feed inlet of a biomass pyrolysis pretreatment device of the utility model.

[0017] In the figure: 1. Material box; 2. Material guiding groove; 3. Material pipe; 4. Heating cavity; 5. Ventilation pipe; 6. Sealing door; 7. Sealing box; 8. Exhaust pipeline; 9. Anaerobic pipeline; 10. Feed inlet; 11. Material guiding box. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] In order to make the technical means, creative features, achieved purposes and functions of the utility model easy to understand, the utility model will be further described below in conjunction with specific embodiments.

[0019] Such as Figures 1-4As shown, a biomass pyrolysis pretreatment device includes a material box 1, the interior of the material box 1 is filled with crushed biomass raw materials, a plurality of funnel-shaped material guide troughs 2 are opened at the bottom of the material box 1, the biomass raw materials are divided into equal parts and discharged through the plurality of material guide troughs 2, the shape of the funnel can ensure better discharge of the raw materials, and at the same time can avoid the accumulation of raw materials to a certain extent, a material pipe 3 is fixedly installed at the position of each material guide trough 2 at the bottom of the material box 1, the divided raw materials will accumulate inside the material pipe 3, a hollow heating chamber 4 is arranged below the material box 1, there is a gap between the heating chamber 4 and the material pipe 3, to facilitate the flow of heated gas, the material pipe 3 is fixedly passed through the interior of the heating chamber 4, two ventilation pipes 5 are installed on the surface of the heating chamber 4, a closable sealing door 6 is installed at the bottom of the heating chamber 4, and the sealing door 6 is opened and closed electrically.

[0020] In the initial state, the sealing door 6 is in a closed state, and the high temperature generated by the combustion chamber is passed into the interior of the ventilation pipe 5. By putting the material into the interior of the material box 1, the oxygen-free environment inside the material box 1 can be ensured first. The raw materials enter the material box 1 and are equally divided into the interior of each material pipe 3 through the material guide trough 2. At this time, the high-temperature gas flows inside the heating chamber 4, so as to achieve uniform heating of the raw materials. The material pipe 3 can be made of materials with strong thermal conductivity. When the heating is completed, the sealing door 6 is opened to discharge the raw materials.

[0021] A sealing box 7 is fixedly sleeved on the surface of the material box 1, and the top and bottom of the sealing box 7 are flush with the top and bottom of the material box 1. A gap is set between the sealing box 7 and the material box 1 to ensure that the gas can circulate. The outlet of the ventilation pipe 5 for exhausting gas is connected to the interior of the sealing box 7, and an exhaust pipe 8 is installed on the surface of the sealing box 7. Since the heated gas still has a large amount of heat after use, it will cause a large energy loss if it is directly discharged. At this time, the used high-temperature gas enters the interior of the sealing box 7 through the ventilation pipe 5, and uses the waste heat to preheat the raw materials, thereby increasing the initial temperature of the raw materials added to the material pipe 3, indirectly improving the heating efficiency, and finally the gas is discharged from the exhaust pipe 8.

[0022] Two anaerobic pipes 9 are fixedly installed on the surface of the material box 1. The two anaerobic pipes 9 are fixedly penetrated through the surface of the sealing box 7. The purpose of the anaerobic pipes 9 is to introduce non-oxygen gas into the interior of the material box 1. At the same time, the pyrolysis gas generated by the raw material under high-temperature heating will also be discharged from the interior of the anaerobic pipes 9 along with the anaerobic gas, thereby ensuring a better effect of biomass carbonization and a better quality of the finished product.

[0023] The top of the material box 1 is provided with a feed inlet 10, and a material guide box 11 is fixedly installed at the position of the feed inlet 10. The material guide box 11 is funnel-shaped, and users can add biomass into the interior of the material box 1 through the material guide box 11 and the feed inlet 10.

[0024] The material guide grooves 2 are arranged in a pentagonal linear array inside the material box 1, and the gaps between the material guide grooves 2 are as small as possible to avoid the accumulation of raw materials. A vibrator can also be arranged inside the material box 1, and the vibrator can be used to vibrate the accumulated raw materials into the interior of the material guide grooves 2 to reduce the waste of raw materials.

[0025] It should be noted that the present utility model is a biomass pyrolysis pretreatment device. When in use, the sealing door 6 is in a closed state. A combustion chamber is arranged outside the device, natural gas is introduced into the combustion chamber for heating and combustion, and the high-temperature gas generated by the combustion chamber is introduced into the interior of one of the gas pipes 5. The pyrolysis gas generated by heating the anaerobic gas is introduced into the interior of the combustion chamber for auxiliary heating. Biomass is added into the interior of the material box 1 through the material guide box 11 and the feed inlet 10. At the same time, non-oxygen gas is introduced into the interior of the material box 1. The raw materials enter the material box 1 and are equally divided into the interior of each material pipe 3 through the material guide grooves 2. At this time, the high-temperature gas flows inside the heating chamber 4, so as to realize uniform heating of the raw materials. The used high-temperature gas enters the interior of the sealing box 7 through the gas pipe 5, and the waste heat is used to preheat the raw materials to increase the initial temperature of the raw materials when they are added into the interior of the material pipe 3. During this process, the pyrolysis gas generated by the raw materials under the action of high-temperature heating will be discharged from the interior of the anaerobic gas pipe 9 along with the anaerobic gas. After the heating is completed, the sealing door 6 can be opened to discharge the raw materials, and then the above operations are repeated.

[0026] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A biomass pyrolysis pretreatment device, comprising a material box (1), characterized in that: The bottom of the material box (1) is provided with a plurality of funnel-shaped material guide grooves (2), and a material pipe (3) is fixedly installed at a position corresponding to each material guide groove (2) at the bottom of the material box (1). A hollow heating chamber (4) is provided below the material box (1), and the material pipe (3) is fixedly passed through the interior of the heating chamber (4). Two ventilation pipes (5) are installed on the surface of the heating chamber (4), and a closable sealing door (6) is installed at the bottom of the heating chamber (4).

2. A biomass pyrolysis pretreatment device according to claim 1, characterized in that: A sealing box (7) is fixedly sleeved on the surface of the material box (1), a gap is provided between the sealing box (7) and the material box (1), an outlet of the vent pipe (5) for venting air is connected to the interior of the sealing box (7), and an exhaust pipe (8) is installed on the surface of the sealing box (7).

3. A biomass pyrolysis pretreatment device according to claim 2, characterized in that: Two oxygen-free pipes (9) are fixedly installed on the surface of the material box (1), and the two oxygen-free pipes (9) are fixedly penetrated through the surface of the sealing box (7).

4. The biomass pyrolysis pretreatment equipment according to claim 1, characterized in that: A material feed port (10) is provided on the top of the material box (1), and a material guide box (11) is fixedly installed at the position of the material feed port (10), and the material guide box (11) is configured to be funnel-shaped.

5. The biomass pyrolysis pretreatment equipment according to claim 1, characterized in that: The material guide troughs (2) are arranged in a pentagonal linear array inside the material box (1), and a vibrator may also be arranged inside the material box (1).

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