Integrated device for thermal hydrolysis crushing

Abstract

It is an integrated device for thermal hydrolysis crushing. [Solution] The integrated pyrohydrolysis crushing device includes a pyrohydrolysis unit (1), a crushing unit (2), and a transmission unit (3). The pyrohydrolysis unit is equipped with a transmission shaft (13), to which a variable-pitch spiral blade (18) is attached. The crushing unit is equipped with a spiral blade (23), and the bottom of the crushing unit is equipped with a wastewater filter screen (24) and a material discharge outlet (26). The transmission unit enables the pyrohydrolysis unit and the crushing unit to rotate at different speeds and in different directions by meshing a driving wheel (31), a driven wheel (32), and a gear (33). This device integrates the hydrolysis pretreatment stage and the subsequent crushing stage into a single facility, improving material processing efficiency and facility compactness.

Description

[Technical Field]

[0001] The present invention relates to the technical field of material crushing and pre-treatment, and in particular to an integrated thermal hydrolysis and crushing device. [Background technology]

[0002] Pyrohydrolysis and crushing are important steps in the reduction and recycling of solid waste, such as agricultural and forestry waste and organic waste. Pyrohydrolysis generally involves steaming biomass at a constant pressure using water or steam at a constant temperature, promoting the decomposition of polymeric substances and allowing the organic matter within to further react with microorganisms, which is beneficial for accelerating the reaction rate. Traditionally, pyrohydrolysis has been performed using a boiler, which typically requires large amounts of high-temperature, high-pressure steam, resulting in high costs. Furthermore, traditional technologies often separate the pyrohydrolysis pretreatment and crushing processes into two separate equipment stages, which is detrimental to the continuity of material reactions, increases the complexity of the equipment, increases the number of processing stages, and reduces production efficiency. Summary of the Invention [Problem to be solved by the invention]

[0003] In response to the above problems, the present invention proposes an integrated pyrohydrolysis crushing device that integrates the pyrohydrolysis pretreatment stage of the material and the subsequent crushing process into one facility, thereby improving material processing efficiency and facility compactness.

[0004] The object of the present invention is to solve the problems presented in the background art and to propose an integrated device for pyrohydrolysis crushing. [Means for solving the problem]

[0005] The technical solution of the present invention is as follows: An integrated pyrohydrolysis crushing device including a thermal hydrolysis unit, a crushing unit, and a speed change unit, wherein the thermal hydrolysis unit includes a material supply warehouse, an electric motor, a transmission shaft, a vent, high-pressure steam, a heat insulating layer, an inner casing, a variable-pitch spiral blade, and an outer casing, the crushing unit includes a hollow shaft, a bearing, a spiral cutting blade, a wastewater filter screen, a variable-diameter shaft, and a material discharge port, and the speed change unit includes a driving wheel, a driven wheel, a gear, a fixed frame, a spline, and a flat key, A transmission shaft is provided under the material supply warehouse, and an electric motor is connected to the left side of the transmission shaft. A variable-pitch spiral blade is attached to the transmission shaft. The transmission shaft passes through the entire integrated pyrohydrolysis crushing device, and a gradually reduced diameter shaft is provided at the end of the pyrohydrolysis unit. The outer casing of the thermal hydrolysis unit is provided with a plurality of vent holes, the vent holes passing through the outer casing, the insulating layer and the inner casing, and each vent hole being in contact with external high-pressure steam; The hollow shaft is cylindrical and is attached to the different diameter shaft by a bearing. A spiral blade is attached to the hollow shaft. A wastewater filter net and a material discharge port are attached to the outer casing of the crushing unit. The driving wheel is connected to the end of the different diameter shaft via a flat key and meshes with the driven wheel, the driven wheel is fixed to a fixed frame and meshes with the gear, and the gear and the hollow shaft are connected by a spline. Integrated device for pyrohydrolysis crushing. Beneficial effects

[0006] 1. The present invention uses water / steam to carry out the thermal hydrolysis reaction, which significantly reduces the amount of water used and reduces the amount of waste liquid discharged during the treatment process. 2. The present invention integrates the thermal hydrolysis process and crushing process of materials, reducing the cost of pre-treatment equipment and enhancing the continuity of material treatment processes. 3. The present invention integrates the thermal hydrolysis pretreatment and crushing of materials, reducing the energy loss in the process and improving the processing efficiency. 4. The device of the present invention allows the thermal hydrolysis unit and the crushing unit to rotate at different speeds and in different directions, thereby enhancing the crushing effect of the crushing unit. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a structural schematic diagram of an integrated device for pyrohydrolysis crushing. [Figure 2] FIG. 4 is a cross-sectional view of a connection structure between a main driving wheel and a different diameter shaft. [Figure 3] FIG. 2 is a cross-sectional view taken along line AA at the connection between the driven wheel and the gear. DETAILED DESCRIPTION OF THE INVENTION

[0008] For clarity of explanation, the direction of forward movement of the feedstock is defined herein as the end.

[0009] The pyrohydrolysis unit 1 includes a material supply warehouse 11, an electric motor 12, a transmission shaft 13, a vent 14, high-pressure steam 15, a heat insulating layer 16, an inner casing 17, a variable-pitch spiral blade 18, and an outer casing 19. The crushing unit 2 includes a hollow shaft 21, a bearing 22, a spiral impeller 23, a wastewater filter screen 24, a variable-diameter shaft 25, and a material discharge port 26. The transmission unit 3 includes a driving wheel 31, a driven wheel 32, a gear 33, a fixed frame 34, a spline 35, and a flat key 36. The transmission shaft 13 is provided below the material supply warehouse 11. The electric motor 12 is connected to the left side of the transmission shaft 13. The variable-pitch spiral blade 18 is attached to the transmission shaft 13. The pyrohydrolysis unit 1 has an outer casing 19 provided with a plurality of vent holes 14, which penetrate the outer casing 19, the heat insulating layer 16 and the inner casing 17, and each vent hole 14 is in contact with the external high-pressure steam 15. The hollow shaft 21 is cylindrical and is attached to the diverging shaft 25 by a bearing 22. The hollow shaft 21 is A spiral blade 23 is attached to the shaft 21, a wastewater filter screen 24 and a material discharge port 26 are attached to the outer casing 19 of the crushing unit 2, a driving wheel 31 is connected to the end of the different diameter shaft 25 via a flat key 26 and is meshed with a driven wheel 32, the driven wheel 32 is fixed to a fixed frame 34 and is meshed with a gear 33, and the gear 33 and the hollow shaft 21 are connected by a spline 35, an integrated device for pyrohydrolysis crushing.

[0010] 1 and 2, the pyrohydrolysis unit 1, the crushing unit 2, and the transmission unit 3 are arranged in sequence in the direction of forward movement of the raw material. The different-diameter shaft 25 is fixedly connected coaxially to the transmission shaft 13, and the hollow shaft 21 is rotatably fitted onto the different-diameter shaft 25 via a bearing 22, and passes through the crushing unit 2, the fixed frame 34, the gear 33, and the main driving wheel 31 in sequence along the axial direction. The end of the different-diameter shaft 25 protrudes from the end of the hollow shaft 21. The driven wheels 32 include a first driven wheel 32-a, a second driven wheel 32-b, and a third driven wheel 32-c, which are fixed to a fixed frame 34 at intervals on the outer periphery of the gear 33, and the main driving wheel 31 simultaneously meshes with the first driven wheel 32-a, the second driven wheel 32-b, and the third driven wheel 32-c on the outer sides away from the gear 33. Under the action of the electric motor 12, the different diameter shaft 25 rotates the driving wheel 31 via the flat key 36, the driving wheel 31 rotates the driven wheel 32 in the same direction, the driven wheel 32 attached to the outer periphery of the gear 33 rotates the gear 33 in a different direction, and finally the hollow shaft 21 connected to the gear 33 via the spline 35 and the transmission shaft 13 rotate in different directions. By setting it up as described above, the pyrohydrolysis unit 1 and the crushing unit 2 can rotate at different speeds and in different directions, which improves the crushing effect of the spiral blades 23.

[0011] The outer casing 19 of the pyrohydrolysis unit 1 and the outer casing 19 of the crushing unit 2 are coated with a complete thermal insulation layer 16, which encases the entire inner casing 17 of the integrated pyrohydrolysis crushing apparatus.

[0012] High pressure steam 15 is forced into vent 14, which may be other solvent vapors including, but not limited to, water, inorganic or organic solvents such as ethanol.

[0013] The variable pitch spiral blades 18 can transport the material to participate in the pyrohydrolysis, and can also form extrusions between the blades, which can have the effect of dehydrating the material.

[0014] The meshing method of the driven wheel 32 and the gear 33 is not limited to that shown in the figure, and the function can also be realized by connecting them in other ways.

[0015] The raw material enters the equipment from the material supply warehouse 11, and the electric motor 12 rotates the transmission shaft 13, on which the variable-pitch spiral blade 18 slowly and continuously transports the raw material forward. At the same time, high-pressure steam 15 enters the equipment through the vent 14 and mixes with the raw material transported by the variable-pitch spiral blade 18 to carry out thermal hydrolysis. After thermal hydrolysis, the material continues to move forward and is crushed through the spiral blade 23. The liquid portion is discharged and collected through the wastewater filter net 24, and the crushed material particles are collected through the material discharge port 26.

Claims

1. An integrated pyrohydrolysis crushing device including a pyrohydrolysis unit, a crushing unit, and a speed change unit, wherein the pyrohydrolysis unit includes a material supply warehouse, an electric motor, a transmission shaft, a vent, high-pressure steam, a heat insulating layer, an inner casing, a variable-pitch spiral blade, and an outer casing; the crushing unit includes a hollow shaft, a bearing, a spiral blade, a sewage filter net, a different-diameter shaft, and a material discharge port; and the speed change unit includes a driving wheel, a driven wheel, a gear, a fixed frame, a spline, and a flat key; A transmission shaft is provided under the material supply warehouse, and an electric motor is connected to the left side of the transmission shaft. A variable-pitch spiral blade is attached to the transmission shaft. The transmission shaft passes through the entire integrated pyrohydrolysis crushing device, and a gradually reduced diameter shaft is provided at the end of the pyrohydrolysis unit. The outer casing of the thermal hydrolysis unit is provided with a plurality of vent holes, which penetrate the outer casing, the insulating layer and the inner casing, and each vent hole is in contact with external high-pressure steam; The hollow shaft is cylindrical and is attached to the different diameter shaft by a bearing, a spiral blade is attached to the hollow shaft, a sewage filter screen and a material discharge outlet are attached to the outer casing of the crushing unit, the driving wheel is connected to the end of the different diameter shaft via a flat key and is meshed with the driven wheel, the driven wheel is fixed to the fixed frame and is meshed with a gear, and the gear and the hollow shaft are connected by a spline. An integrated device for thermal hydrolysis crushing.

2. The outer casing of the pyrohydrolysis unit and the outer casing of the crushing unit are covered with a complete heat insulating layer, which encloses the entire inner casing of the integrated pyrohydrolysis crushing device; 2. The integrated pyrohydrolysis crushing device according to claim 1.

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