System for collecting products produced by steam explosion

Abstract

The invention belongs to the technical field of steam explosion, and particularly relates to a product collecting system for steam explosion production, which comprises a collector, a feed port of the collector is connected with a discharge port of a steam explosion system through a pipeline, a discharge port of the collector is arranged below the collector, the lower part of the collector extends into a sealing cover, and the sealing cover is arranged below the collector. One end of the belt conveyor is positioned below the discharge hole of the collector in the sealing cover, and the other end of the belt conveyor is connected with the drying and screening system; the upper part of the collector is connected with an exhaust inlet of an induced draft fan, and an air outlet of the induced draft fan is connected with a waste heat recovery system through a pipeline; and a liquid collecting tank is arranged below the belt conveyor in the sealing cover and is connected with a liquid recovery system through a pipeline. The system is seamlessly connected with a steam explosion system and a drying and screening system of a steam explosion production line, the production efficiency is improved, stable control over the product quality is facilitated, the structure is compact, and the occupied space is small.

Description

Technical Field

[0001] The invention belongs to the technical field of steam explosion, and in particular relates to a product collection system produced by steam explosion. Background Art

[0002] Steam explosion technology originated from the production of artificial fiberboard many years ago. In the research on biomass conversion technology in recent decades, it was found that steam explosion technology as a pretreatment method is helpful for the hydrolysis and fermentation of lignocellulosic materials, and has the advantages of low energy consumption, low pollution, and environmental friendliness. The use of steam explosion technology as a pretreatment method for plant straw has achieved great development.

[0003] In the steam explosion production line, the material collection system is an important part of the production line, which plays a decisive role in whether the steam explosion production line can operate stably and normally, whether the product quality can be stable and controllable, etc. However, the material collection system of the current steam explosion production line is an open structure, and occupies a large area, which cannot alleviate the large impact of entering the collection system, resulting in a large impact on the product and a high crushing ratio, affecting the product yield. Summary of the invention

[0004] The object of the present invention is to provide a product collection system for steam explosion production to solve the problems existing in the above-mentioned background technology.

[0005] To achieve the above objectives, this application is implemented through the following technical solutions:

[0006] A product collection system produced by steam explosion, comprising a collector, wherein a feed port of the collector is connected to a discharge port of a steam explosion system through a pipeline, the discharge port of the collector is arranged below the collector, the bottom of the collector extends into a sealing cover, one end of a belt conveyor is located below the discharge port of the collector in the sealing cover, and the other end of the belt conveyor is connected to a drying and screening system;

[0007] The collector is connected to the air inlet of the induced draft fan above, and the air outlet of the induced draft fan is connected to the waste heat recovery system through a pipeline;

[0008] A liquid collecting tank is arranged below the belt conveyor in the sealing cover, and the liquid collecting tank is connected to the liquid recovery system through a pipeline.

[0009] Furthermore, the axial cross-section at the lower portion of the collector is triangular, and the discharge port of the collector is arranged at the bottom angle of the triangle.

[0010] Furthermore, a plurality of layers of guide belts are arranged on the side of the collector near the feed port, each layer of guide belts is a large circular plate, the intervals between two adjacent layers of guide belts are not equal, and the intervals gradually increase from top to bottom, and the length of the axial cross-section of the guide belt passing through the center line of the collector gradually decreases from top to bottom.

[0011] Furthermore, each layer of the guide belt is provided with a plurality of openings which penetrate vertically.

[0012] Furthermore, a heat-insulating material layer and a sound-absorbing material layer are provided on the outside of the collector.

[0013] Furthermore, the sealing cover comprises a sealing cover body and a moving wheel arranged below the sealing cover body, and the sealing cover body is a box-shaped structure.

[0014] Furthermore, the connection end of the belt conveyor and the drying and screening system is higher than the end of the belt conveyor located in the sealing cover, and a hole or slot structure for passing liquid is provided on the belt conveyor.

[0015] Furthermore, a liquid collecting plate parallel to the belt conveyor is provided below the belt conveyor, and the bottom of the liquid collecting plate is connected to the liquid collecting tank.

[0016] Furthermore, a waste heat recovery pipe is provided between the liquid collecting tank and the belt conveyor, and the other end of the waste heat recovery pipe is connected to the waste heat recovery system.

[0017] The beneficial effects of the present invention are:

[0018] 1. The system has a compact structure, occupies little space and reduces investment.

[0019] 2. This system achieves seamless connection with the front end (steam explosion system) and back end (drying and screening system) of the steam explosion production line, which improves production efficiency and is also conducive to the stable control of product quality.

[0020] 3. The process products from the steam explosion system enter the collector tangentially and can be led downward quickly and orderly through the guide belt, which effectively reduces the greater impact brought by the process products entering the collector tangentially, effectively reduces the vibration of the collector, reduces the breakage of the process products due to the greater impact, improves the uniformity of the process product's external dimensions, and improves the process product yield.

[0021] 4. The shape (rectangular or round, etc.) and size (length, width and height, etc.) of the guide belt vary according to the different raw materials (wood, bamboo, rhizomes and grasses, etc.) and the different quality requirements of the process products. The manufacturing materials are also different (such as ordinary steel and food-grade materials, etc.).

[0022] 5. The high-temperature gas brought by the process products is promptly sent to the waste heat recovery system through the induced draft fan for full utilization.

[0023] 6. A small amount of liquid brought along with the process product is also collected in a liquid collection tank through a belt conveyor with holes or slits, and then sent to the liquid recovery system for utilization, thus achieving green production without waste gas or waste liquid emissions, and ensuring a clean and hygienic production environment.

[0024] 7. The collector is equipped with a double outer layer of heat preservation and soundproofing, which provides a relatively stable temperature for the collector, which is beneficial to the stability of process product quality, reduces the amount of steam condensate produced, and reduces the noise generated when the process product enters the collector.

[0025] 8. This system uses pneumatic or electric equipment and components, which can be automatically controlled and remotely operated through relevant control software.

[0026] 9. Both the belt conveyor and the sealing cover are movable, which is convenient for maintenance and cleaning.

[0027] 10. The negative pressure generated by recovering waste heat is conducive to the removal of liquid carried by the process product, which is conducive to reducing the heat energy consumption of subsequent drying and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of the product collection system produced by steam explosion of the present invention.

[0029] Figure 2 This is a flow chart of the product collection system produced by steam explosion of the present invention.

[0030] Description of reference numerals:

[0031] 1. Collector; 2. Manhole; 3. Guide belt; 4. Support ear; 5. Insulation material layer; 6. Sound-absorbing material layer; 7. Fixing buckle; 8. Sealing cover; 9. Movable baffle; 10. Belt conveyor; 11. Liquid collecting tank; 12. Moving wheel; 13. Draft fan; 14. Liquid collecting plate; 15. Waste heat recovery pipe. DETAILED DESCRIPTION

[0032] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solution of the present invention, but cannot be construed as limiting the technical solution of the present invention.

[0033] Please refer to Figure 1 and Figure 2As shown, the present application provides a product collection system for steam explosion production, which is used in a steam explosion production line and is used to connect a steam explosion system and a drying and screening system. The product collection system for steam explosion production of the present application comprises a collector 1, a sealing cover 8, an induced draft fan 13, a liquid collection tank 11, and a belt conveyor 10.

[0034] The collector 1 of the present application is composed of a cylindrical collector body, an arc-shaped top cover above the collector body and a material collection part located on the collector body, which are integrally connected along the upper and lower axial directions. A feed port of the collector is provided on the side wall of the collector body, an air outlet and a manhole 2 are provided on the top cover, and at least two support ears 4 are provided on the side wall of the collector body for the installation and movement of the collector. The width of the material collection part gradually decreases from top to bottom along the axial section of the collector body, and the discharge port of the collector is provided at the lowest end of the material collection part.

[0035] A multi-layer guide belt 3 is arranged on the side of the collector near the inlet of the collector. Each layer of the guide belt is an arc-shaped plate that matches the shape of the inner cavity of the collector body, and is a large cut circular plate. The intervals between two adjacent layers of the guide belt are not equal. Moreover, from top to bottom, the axial section of the guide belt passing through the center line of the collector also passes through the center of the circular plate when not cut, and the length of the section perpendicular to the chord of the large cut circle gradually decreases. In the technical solution of the present application, a plurality of openings that pass through the top and bottom are arranged on each layer of the guide belt to facilitate the dripping of the liquid, and also have the effect of slowing down the impact of the airflow.

[0036] In the present application, a thermal insulation material layer 5 and a sound-absorbing material layer 6 are sequentially arranged on the outside of the collector 1, which provides a relatively stable temperature for the collector, is beneficial to the stability of the quality of the process product, and also reduces the amount of steam condensate generated, and reduces the noise generated when the process product enters the collector.

[0037] In the present application, the lower part of the collector, i.e., the material collection part, is arranged in the sealing cover 8. The sealing cover 8 of the present application includes a sealing cover body and a moving wheel 12 arranged below the sealing cover body. The sealing cover body is a box-shaped structure. By pushing the moving wheel, the sealing cover can be moved for easy maintenance and cleaning.

[0038] One end of the belt conveyor 10 of the present application is located below the discharge port of the collector in the sealing cover, and the other end of the belt conveyor is connected to the drying and screening system. The belt conveyor is arranged at an angle, and the connection end of the belt conveyor and the drying and screening system is higher than the end of the belt conveyor located in the sealing cover, and a hole or slit structure for passing liquid is provided on the belt conveyor.

[0039] A liquid collecting plate 14 is arranged below the belt conveyor and is parallel to the belt conveyor. The bottom of the liquid collecting plate is connected to the liquid collecting tank 11. A liquid collecting tank 11 is arranged below the belt conveyor in the sealing cover, and the liquid collecting tank is connected to the liquid recovery system through a pipeline. During the conveying process of the belt conveyor, the liquid mixed in the product drips onto the liquid collecting plate through holes or slits, then flows into the liquid collecting tank, and then flows into the liquid recovery system for utilization, thereby realizing green production without waste gas and waste liquid emissions, and also ensuring the cleanliness and hygiene of the production environment.

[0040] The air outlet of the collector is connected to the air intake of the induced draft fan 13, and the air outlet of the induced draft fan is connected to the waste heat recovery system through a pipeline. A waste heat recovery pipe 15 is arranged between the liquid collection tank and the belt conveyor, and the other end of the waste heat recovery pipe is connected to the waste heat recovery system.

[0041] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A product collection system for steam explosion production, It is characterized in that It includes a collector, wherein the feed port of the collector is connected to the discharge port of the steam explosion system through a pipeline, the discharge port of the collector is arranged below the collector, the bottom of the collector extends into the sealing cover, one end of the belt conveyor is located below the discharge port of the collector in the sealing cover, and the other end of the belt conveyor is connected to the drying and screening system; The collector is connected to the air inlet of the induced draft fan above, and the air outlet of the induced draft fan is connected to the waste heat recovery system through a pipeline; A liquid collecting tank is arranged below the belt conveyor in the sealing cover, and the liquid collecting tank is connected to the liquid recovery system through a pipeline.

2. The product collection system for steam explosion production according to claim 1, It is characterized in that The axial cross section at the lower part of the collector is triangular, and the discharge port of the collector is arranged at the bottom angle of the triangle.

3. The product collection system for steam explosion production according to claim 1, It is characterized in that A plurality of layers of guide belts are arranged on one side of the collector near the feed port of the collector. Each layer of guide belts is a large circular plate. The intervals between two adjacent layers of guide belts are not equal, and the intervals gradually increase from top to bottom. From top to bottom, the length of the axial section of the guide belt passing through the center line of the collector gradually decreases.

4. The product collection system of steam explosion production according to claim 3, It is characterized in that A plurality of openings penetrating vertically are arranged on each layer of the guide belt.

5. The product collection system for steam explosion production according to claim 1, It is characterized in that A heat-insulating material layer and a sound-absorbing material layer are arranged on the outside of the collector.

6. The product collection system for steam explosion production according to claim 1, It is characterized in that The sealing cover comprises a sealing cover body and a moving wheel arranged below the sealing cover body, and the sealing cover body is a box-shaped structure.

7. The product collection system for steam explosion production according to claim 1, It is characterized in that The connection end of the belt conveyor and the drying screening system is higher than the end of the belt conveyor located in the sealing cover, and a hole or slot structure for passing liquid is arranged on the belt conveyor.

8. The product collection system for steam explosion production according to claim 1, It is characterized in that A liquid collecting plate parallel to the belt conveyor is arranged below the belt conveyor, and the bottom of the liquid collecting plate is connected to the liquid collecting tank.

9. The product collection system for steam explosion production according to claim 1, It is characterized in that A waste heat recovery pipe is arranged between the liquid collecting tank and the belt conveyor, and the other end of the waste heat recovery pipe is connected to the waste heat recovery system.

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