High-pressure consolidation and cementation dehydration device and dehydration method

Abstract

The invention discloses a high-pressure consolidation cementing dehydration device and a dehydration method, belongs to the technical field of mushroom dreg dehydration, and aims to solve the problems of low dehydration rate and poor dehydration effect of high-pressure dehydration equipment for dehydrating mushroom dreg slurry in the prior art. The dewatering device comprises a lifting mechanism, a filter drum, a pressing roller and filter cloth, the filter cloth wraps mushroom dreg slurry to form a mushroom dreg slurry bag, the mushroom dreg slurry bag is arranged in the filter drum, the pressing roller is arranged above the filter drum, and the lifting mechanism is arranged below the filter drum; the lifting mechanism is used for driving the filter cartridge to reciprocate relative to the pressing roller, so that the pressing roller performs pressing, cementing and dewatering on the mushroom residue slurry in the mushroom residue slurry bag. The method comprises the following steps: starting a lifting mechanism, and driving a mushroom residue slurry bag to move in a direction close to a pressing and fixing roller and to be in contact with the pressing and fixing roller; the mushroom residue slurry bag is continuously driven to move in the direction close to the pressing and fixing roller, the pressing and fixing roller is started, and the pressing and fixing roller fixes and dehydrates the mushroom residue slurry in the mushroom residue slurry bag. The method can be used for mushroom dreg dehydration.

Description

Technical Field

[0001] The present invention belongs to the technical field of mushroom residue dehydration, and particularly relates to a high-pressure compaction and cementation dehydration device and a dehydration method. Background Art

[0002] Mushroom residue is a solid waste generated during the process of microbial fermentation production (such as edible mushroom cultivation, antibiotic fermentation, enzyme preparation production, etc.). Its water content is usually as high as 70% - 90%. It is necessary to dehydrate the mushroom residue before subsequent treatment can be carried out.

[0003] Currently, for the dehydration of mushroom residue, high-pressure dehydration equipment is usually used. Specifically, the mushroom residue slurry with a high water content is pumped into the closed chamber of the high-pressure dehydration equipment by a hydraulic pump, and the force is transmitted through the hydraulic pressure and between the particles inside the mushroom residue slurry.

[0004] However, this dehydration method will cause the dispersion of force in the mushroom residue slurry, and only the water between the particles in the mushroom residue slurry can be removed, and the water inside the particles cannot be removed. As a result, the dehydration rate of the mushroom residue is low, the water content after dehydration is large, the dehydration effect is poor, and the ideal compaction purpose cannot be achieved, which is not conducive to the subsequent process. Summary of the Invention

[0005] In view of the above analysis, the present invention aims to provide a high-pressure compaction and cementation dehydration device and a dehydration method to solve the problems of low dehydration rate and poor dehydration effect of the existing high-pressure dehydration equipment for dehydrating mushroom residue slurry.

[0006] The object of the present invention is mainly achieved through the following technical solutions.

[0007] The present invention provides a high-pressure compaction and cementation dehydration device, including a lifting mechanism, a filter cylinder, a compaction roller, and a filter cloth. The filter cloth wraps the mushroom residue slurry to form a mushroom residue slurry package. The mushroom residue slurry package is placed in the filter cylinder, the compaction roller is placed above the filter cylinder, and the lifting mechanism is arranged below the filter cylinder; the lifting mechanism is used to drive the filter cylinder to reciprocate relative to the compaction roller, so that the compaction roller compacts and cements the dehydration of the mushroom residue slurry in the mushroom residue slurry package.

[0008] Further, the filter cylinder includes an inner cylinder layer, an outer cylinder layer, and a heating ring. The outer cylinder layer is arranged outside the inner cylinder layer, and there is a gap between the inner cylinder layer and the outer cylinder layer, and the heating ring is located in the gap.

[0009] Further, the number of heating rings is multiple.

[0010] Further, the multiple heating rings are arranged vertically in sequence.

[0011] Further, the compaction roller includes a roller body and a heating element arranged inside the roller body.

[0012] Further, the high-pressure compaction cementation dehydration device further includes support columns. The lower ends of the support columns are fixedly connected to the lifting mechanism, and the filter cylinder is placed at the top of the support columns.

[0013] Further, the high-pressure compaction cementation dehydration device further includes a water collection tank, which is located directly below the filter cylinder.

[0014] Further, the water collection tank is located below the lifting mechanism.

[0015] The present invention also provides a high-pressure compaction cementation dehydration method, which is characterized by using the above-mentioned high-pressure compaction cementation dehydration device.

[0016] Further, the high-pressure compaction cementation dehydration method includes the following steps:

[0017] Step 1: Lay the filter cloth in the filter cylinder;

[0018] Step 2: Place the bacterial residue slurry on the filter cloth and tie the filter cloth tightly to obtain a bacterial residue slurry package;

[0019] Step 3: Start the lifting mechanism, drive the bacterial residue slurry package to move towards the compaction roller and contact the compaction roller;

[0020] Step 4: Continue to drive the bacterial residue slurry package to move towards the compaction roller, start the compaction roller, and the compaction roller compacts and dehydrates the bacterial residue slurry in the bacterial residue slurry package.

[0021] Compared with the prior art, the present invention can at least achieve one of the following beneficial effects:

[0022] A) The high-pressure compaction cementation dehydration device provided by the present invention uses a mutually cooperating filter cloth, filter cylinder and compaction roller. By directly applying the high-pressure mechanical pressure of the compaction roller to the material particles, the mechanical pressure can be diffused into the particles of the bacterial residue slurry, effectively squeezing and dehydrating the inside of the particles, improving the dehydration rate of the bacterial residue and ensuring the dehydration effect.

[0023] B) In the high-pressure compaction cementation dehydration device provided by the present invention, the filter cylinder includes an inner cylinder layer, an outer cylinder layer and a heating ring. A heating fluid such as steam or heat-conducting oil is introduced into the heating ring, and the heat is transferred to the bacterial residue slurry package through the inner cylinder layer to heat the bacterial residue slurry. The increase in temperature will cause the viscosity of the bacterial residue slurry to decrease, which is more conducive to the dehydration of the bacterial residue slurry.

[0024] C) In the high-pressure compaction cementation dehydration device provided by the present invention, the number of heating rings is multiple, and the multiple heating rings are arranged vertically in sequence to heat the bacterial residue slurry package as a whole.

[0025] D) In the high-pressure compaction cementation dehydration device provided by the present invention, the compaction roller includes a roller body and a heating element arranged inside the roller body, and the heating element heats the upper surface of the bacterial residue slurry.

[0026] In the present invention, the above technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the following specification, and some advantages can be made obvious from the specification, or can be understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained from the content specifically pointed out in the embodiments of the specification and the drawings. Description of the Drawings

[0027] The drawings are only for the purpose of showing specific embodiments, and are not considered to be a limitation of the present invention. Throughout the drawings, the same reference signs denote the same components.

[0028] Figure 1 It is a schematic structural diagram of the high-pressure consolidation and cementation dehydration device provided in the first embodiment of the present invention;

[0029] Figure 2 It is a schematic structural diagram of the filter cartridge in the high-pressure consolidation and cementation dehydration device provided in the first embodiment of the present invention;

[0030] Figure 3 It is a schematic structural diagram of the consolidation roller in the high-pressure consolidation and cementation dehydration device provided in the first embodiment of the present invention;

[0031] Figure 4 It is a structural block diagram of the high-pressure consolidation and cementation dehydration device provided in the second embodiment of the present invention;

[0032] Figure 5 It is a schematic structural diagram of the bacterial residue treatment furnace in the high-pressure consolidation and cementation dehydration device provided in the second embodiment of the present invention.

[0033] Reference Signs:

[0034] 101 - Lifting mechanism; 102 - Filter cartridge; 1021 - Inner layer of the cartridge; 1022 - Outer layer of the cartridge; 1023 - Heating ring; 103 - Consolidation roller; 1031 - Roller body; 1032 - Heating element; 104 - Filter cloth; 105 - Support column; 106 - Water collection tank;

[0035] 201 - Dehumidification chamber; 202 - Anaerobic pyrolysis chamber; 203 - Carbonization chamber; 204 - Full-oxygen combustion chamber; 205 - Melting chamber; 206 - Slag discharge chamber; 207 - Primary fan; 208 - Induced draft fan; 209 - Secondary fan; 2010 - First fixed grille; 2011 - Second fixed grille; 2012 - Material distributor; 2013 - Flow resistance ring. Detailed Embodiments

[0036] The preferred embodiments of the present invention will be specifically described below in conjunction with the accompanying drawings. The accompanying drawings form a part of the present invention and are used together with the embodiments of the present invention to explain the principles of the present invention, rather than to limit the scope of the present invention.

[0037] Embodiment 1

[0038] This embodiment provides a high-pressure compaction and cementation dehydration device. Refer to Figure 1 , which includes a lifting mechanism 101, a filter cylinder 102, a compaction roller 103, and a filter cloth 104. The filter cloth 104 wraps the bacterial residue slurry to form a bacterial residue slurry package. The bacterial residue slurry package is placed in the filter cylinder 102. The compaction roller 103 is placed above the filter cylinder 102. The lifting mechanism 101 is arranged below the filter cylinder 102. The lifting mechanism 101 is used to drive the filter cylinder 102 to reciprocate relative to the compaction roller 103, so that the compaction roller 103 compacts and cements the dehydration of the bacterial residue slurry in the bacterial residue slurry package.

[0039] Compared with the prior art, the high-pressure compaction and cementation dehydration device provided in this embodiment adopts the mutually cooperating filter cloth 104, filter cylinder 102, and compaction roller 103. The high-pressure mechanical pressure of the compaction roller 103 directly acts on the material particles, and can evenly disperse the mechanical pressure into the particles of the bacterial residue slurry, effectively extruding and dehydrating the inside of the particles, improving the dehydration rate of the bacterial residue, and ensuring the dehydration effect.

[0040] To facilitate the connection between the filter cylinder 102 and the lifting mechanism 101, the above high-pressure compaction and cementation dehydration device further includes a support column 105. The lower end of the support column 105 is fixedly connected to the lifting mechanism 101, and the filter cylinder 102 is placed on the top of the support column 105.

[0041] To facilitate the collection of the discharged water, exemplarily, the above high-pressure compaction and cementation dehydration device further includes a water collection tank 106. The water collection tank 106 is located directly below the filter cylinder 102 and below the lifting mechanism 101. The water discharged from the filter cylinder 102 can directly flow into the water collection tank 106 for collection.

[0042] To further promote the dehydration of the bacterial residue slurry, for the structure of the filter cylinder 102, exemplarily, refer to Figure 2 , the filter cylinder 102 includes an inner cylinder layer 1021, an outer cylinder layer 1022, and a heating ring 1023. The outer cylinder layer 1022 is arranged outside the inner cylinder layer 1021. There is a gap between the inner cylinder layer 1021 and the outer cylinder layer 1022. The heating ring 1023 is located in the gap. A heating fluid such as steam or heat transfer oil is introduced into the heating ring 1023, and the heat is transferred to the bacterial residue slurry package through the inner cylinder layer 1021. In this way, the bacterial residue slurry is heated by the heating ring 1023, and the increase in temperature will cause the viscosity of the bacterial residue slurry to decrease, which is more conducive to the dehydration of the bacterial residue slurry.

[0043] Regarding the control of the temperature in the filter cartridge 102, the number of the above-mentioned heating rings 1023 is multiple, and the multiple heating rings 1023 are arranged in sequence vertically, and the bacterial residue slurry package is heated integrally through the multiple heating rings 1023.

[0044] In order to promote the dehydration of the moisture in the bacterial residue slurry package, from bottom to top, the temperature of the heating ring 1023 gradually increases. Exemplarily, the temperature of the topmost heating ring 1023 is above 100 °C (for example, 100-120 °C), and the temperature of the lowermost heating ring 1023 is 50-70 °C. In this way, due to the relatively high heating temperature of the topmost heating ring 1023, the moisture in the bacterial residue in the upper part of the bacterial residue slurry package can be turned into steam, increasing the air pressure in the upper space of the bacterial residue slurry package, and using the air pressure to further promote the discharge of the moisture in the bacterial residue slurry package.

[0045] In order to effectively heat the upper surface of the bacterial residue slurry package to generate steam, for the structure of the pressing roller 103, specifically, see Figure 3 , which includes a roller body 1031 and a heating element 1032 provided inside the roller body 1031. In this way, the upper surface of the bacterial residue slurry is heated through the heating element 1032.

[0046] Exemplarily, the temperature of the heating element 1032 is above 100 °C (for example, 100-120 °C).

[0047] In order to further improve the dehydration uniformity and dehydration rate, the radial cross-sectional shape of the above-mentioned pressing roller 103 is cam-shaped, that is to say, the radius dimensions of the outer wall surface of the pressing roller 103 are different. During the pressing and dehydration process, the initial position of the pressing roller 103 is that the outer wall surface with the smallest radius faces the bacterial residue slurry package.

[0048] During implementation, the lifting mechanism 101 is started, driving the bacterial residue slurry package to move towards the pressing roller 103 and contact the pressing roller 103, and continuing to drive the bacterial residue slurry package to move towards the pressing roller 103. The pressing roller 103 performs primary pressing and dehydration on the bacterial residue slurry in the bacterial residue slurry package. When the bacterial residue slurry package reaches the preset position, the lifting mechanism 101 is closed, the bacterial residue slurry package stops moving, the pressing roller 103 is started, and the pressing roller 103 rotates to increase the outer diameter of the pressing roller 103 corresponding to the bacterial residue slurry package, and continues to perform secondary pressing and dehydration on the bacterial residue under reduced pressure.

[0049] It should be noted that during the rotation of the consolidation roller 103, the outer diameter of the consolidation roller 103 corresponding to the mushroom residue slurry package is constantly changing. Correspondingly, the mechanical pressure on the mushroom residue slurry in the mushroom residue slurry package is also constantly changing. When the mechanical pressure decreases, gaps will be generated between the mushroom residue particles in the mushroom residue slurry package, causing the positions of the mushroom residue particles to change. When the mechanical pressure increases, the mushroom residue slurry in the mushroom residue slurry package will be further consolidated and dehydrated again, thereby effectively improving the dehydration uniformity and dehydration rate.

[0050] In addition, during the rotation of the consolidation roller 103, when the mechanical pressure decreases, the space above the mushroom residue slurry package will increase, and the increased space can accommodate more steam. When the mechanical pressure increases, it will force the steam to flow downward, using air pressure to further promote the discharge of moisture in the mushroom residue slurry package.

[0051] Embodiment 2

[0052] This embodiment provides a high-pressure consolidation and cementation dehydration device, whose structure is basically the same as that of the high-pressure consolidation and cementation dehydration device provided in Embodiment 1, except that:

[0053] In order to be able to provide heating fluid for the heating ring 1023 and the heating element 1032, the above high-pressure consolidation and cementation dehydration device further includes a heat supply unit.

[0054] For the structure of the heat supply unit, see Figure 4 , which includes a mushroom residue treatment furnace and a pyrolysis gas burner. Among them, the mushroom residue feed port of the mushroom residue treatment furnace is connected to the mushroom residue discharge port of the filter cartridge 102, the pyrolysis gas outlet of the mushroom residue treatment furnace is connected to the low-temperature air inlet of the pyrolysis gas burner, and the high-temperature gas outlet of the pyrolysis gas burner is respectively connected to the high-temperature air inlet of the heating ring 1023 and the high-temperature air inlet of the heating element 1032.

[0055] In this way, the mushroom residue particles produced by the high-pressure consolidation and cementation dehydration device are utilized. The mushroom residue particles are made to generate pyrolysis gas through the mushroom residue processor, and the heat generated by burning the pyrolysis gas is used to provide heat for the heating ring 1023 and the heating element 1032, realizing the comprehensive utilization of the mushroom residue slurry.

[0056] For the structure of the mushroom residue treatment furnace, specifically, see Figure 5 , which includes a treatment chamber and a primary fan 207. The treatment chamber is divided into a dehumidification chamber 201, an anoxic pyrolysis chamber 202, a carbonization chamber 203, a full-oxygen combustion chamber 204, a melting chamber 205 and a slag discharge chamber 206 from top to bottom. The side wall of the dehumidification chamber 201 is provided with a mushroom residue feed port, the anoxic pyrolysis chamber 202 is provided with a pyrolysis gas outlet, the primary fan 207 is connected to the melting chamber 205, and the primary fan 207 supplies air or oxygen into the full-oxygen combustion chamber 204 through the melting chamber 205.

[0057] In this way, the bacterial residue particles produced by the high-pressure consolidation and cementation dehydration device are fed into the dehumidification chamber 201, and hot air dehumidifies the bacterial residue particles. Under the action of gravity, the bacterial residue particles will fall into the anoxic pyrolysis chamber 202, where the bacterial residue particles undergo anoxic pyrolysis, and basically no dioxins will be produced. The anoxic pyrolysis process will produce pyrolysis gas (including CO, H2, NO X and SO X ), and the pyrolysis gas is fed into the pyrolysis gas burner. The bacterial residue particles after anoxic pyrolysis fall into the carbonization chamber 203; the bacterial residue particles after anoxic pyrolysis undergo carbonization, further realizing deep pyrolysis and baking, presenting a coking state, and obtaining carbonized particles. The carbonized particles fall into the full-oxygen combustion chamber 204; the carbonized particles present a smoldering state, release heat during combustion, and the generated heat is transferred upward to provide heat for the carbonization chamber 203, the anoxic pyrolysis chamber 202, and the dehumidification chamber 201. The particles after combustion fall into the melting chamber 205; substances such as aluminum silicate in the particles after combustion melt to form a hard and dense glass shell, which can wrap heavy metals, etc., realizing the solidification and non-toxic and harmless treatment of heavy metals.

[0058] To facilitate the discharge of the pyrolysis gas, the pyrolysis gas outlet of the above-mentioned anoxic pyrolysis chamber 202 is connected to the induced draft fan 208, and the pyrolysis gas generated in the anoxic pyrolysis chamber 202 is pumped out of the bacterial residue treatment furnace through the induced draft fan 208 to realize the smooth discharge of the pyrolysis gas.

[0059] It should be noted that the setting of the induced draft fan 208 will cause suction on the air flow in the treatment chamber. To prevent the flame in the combustion area from being drawn into the carbonization chamber 203 and the anoxic pyrolysis chamber 202, resulting in premature combustion of the bacterial residue particles and the generation of pollutants such as dioxins, the above-mentioned anoxic pyrolysis chamber 202 is provided with an anoxic pyrolysis air inlet, and the anoxic pyrolysis air inlet is connected to the secondary fan 209 to supply appropriate air flow (for example, air) into the anoxic pyrolysis chamber 202, so as to avoid excessive negative pressure in the anoxic pyrolysis chamber 202.

[0060] In order to be able to control the falling speed of the bacterial residue particles to ensure sufficient reaction, a first fixed grille 2010 is provided between the anoxic pyrolysis zone and the carbonization chamber 203, and a second fixed grille 2011 is provided between the melting chamber 205 and the slag discharge chamber 206. By setting the first fixed grille 2010 and the second fixed grille 2011, the falling speed of the bacterial residue particles can be better controlled, so as to better carry out oxygen-limited anoxic pyrolysis and melting.

[0061] In order to achieve uniform material distribution, the above-mentioned mushroom residue treatment furnace further includes a material distributor 2012 disposed below the first fixed grille 2010. Distribution holes are formed in the material distributor 2012, and the shape of the material distributor 2012 is conical. The mushroom residue particles after anoxic pyrolysis fall on the material distributor 2012 after passing through the fixed grille, and are uniformly dispersed into the carbonization chamber 203 and the full-oxygen combustion chamber 204 along the conical material distributor 2012.

[0062] It should be noted that since the dehumidification chamber 201, the anoxic pyrolysis chamber 202, the carbonization chamber 203, the full-oxygen combustion chamber 204, the melting chamber 205, and the slag discharge chamber 206 are disposed in the same treatment chamber and are interconnected, in order to achieve oxygen-limited anoxic pyrolysis and full-oxygen combustion, the above-mentioned mushroom residue treatment furnace further includes a flow-blocking ring 2013 disposed between the full-oxygen combustion chamber 204 and the slag discharge chamber 206. Through the setting of the flow-blocking ring 2013, the air supplied to the melting chamber 205 can be blocked, so as to achieve oxygen-limited anoxic pyrolysis and full-oxygen combustion.

[0063] In order to further control oxygen-limited anoxic pyrolysis and full-oxygen combustion, the projections of the flow-blocking ring 2013 and the material distributor 2012 in the radial direction of the treatment chamber completely cover the radial cross-section of the treatment chamber. In this way, the flow-blocking ring 2013 and the material distributor 2012 cooperate with each other, which can not only ensure that the air supplied from the melting chamber 205 can flow smoothly into the full-oxygen combustion chamber 204, but also prevent the air from directly flowing into the anoxic pyrolysis chamber 202.

[0064] Embodiment III

[0065] This embodiment provides a high-pressure compaction and cementation dehydration method, which uses the high-pressure compaction and cementation dehydration device provided in Embodiment I or Embodiment II.

[0066] Compared with the prior art, the beneficial effects of the high-pressure compaction and cementation dehydration method provided in this embodiment are basically the same as those of the high-pressure compaction and cementation dehydration device provided in Embodiment I or Embodiment II, and will not be elaborated here one by one.

[0067] Specifically, the above-mentioned high-pressure compaction and cementation dehydration method includes the following steps:

[0068] Step 1: Lay the filter cloth 104 in the filter cylinder 102;

[0069] Step 2: Place the mushroom residue slurry on the filter cloth 104 and tie the filter cloth 104 tightly to obtain a mushroom residue slurry package;

[0070] Step 3: Start the lifting mechanism 101, drive the mushroom residue slurry package to move towards the direction close to the compaction roller 103 and contact the compaction roller 103;

[0071] Step 4: Continue to drive the mushroom residue pulp package to move towards the direction close to the compaction roller 103, turn on the compaction roller 103, and the compaction roller 103 compacts and dehydrates the mushroom residue pulp in the mushroom residue pulp package.

[0072] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A high-pressure compaction and dehydration device, characterized in that: It comprises a lifting mechanism, a filter cartridge, a pressing roller and a filter cloth, wherein the filter cloth wraps the bacterial residue slurry to form a bacterial residue slurry bag, the bacterial residue slurry bag is placed in the filter cartridge, the pressing roller is placed above the filter cartridge, and the lifting mechanism is arranged below the filter cartridge; The lifting mechanism is used to drive the filter drum to reciprocate relative to the pressing roller, so that the pressing roller presses, consolidates and dehydrates the mushroom residue slurry in the mushroom residue slurry bag.

2. The high-pressure compaction and dehydration device according to claim 1 is characterized in that: The filter cartridge comprises an inner layer, an outer layer and a heating ring. The outer layer is arranged outside the inner layer, a gap is provided between the inner layer and the outer layer, and the heating ring is located in the gap.

3. The high-pressure compaction and dehydration device according to claim 2, characterized in that: The number of the heating rings is multiple.

4. The high-pressure consolidation and dehydration device according to claim 3 is characterized in that: A plurality of heating rings are arranged vertically in sequence.

5. The high-pressure compaction and dehydration device according to claim 1, characterized in that: The pressing roller comprises a roller body and a heating element arranged in the roller body.

6. The high-pressure compaction and dehydration device according to claim 1, characterized in that: The high-pressure compaction and bonding dehydration device also includes a support column, the lower end of which is fixedly connected to the lifting mechanism, and the filter cartridge is placed on the top of the support column.

7. The high-pressure compaction and dehydration device according to claim 1, characterized in that: The high-pressure compaction, bonding and dehydration device also includes a water collecting box, which is located directly below the filter cartridge.

8. The high-pressure compaction and dehydration device according to claim 7, characterized in that: The water collecting tank is located below the lifting mechanism.

9. A high-pressure compaction and dehydration method, characterized in that: A high-pressure compaction, bonding and dehydration device as described in any one of claims 1 to 8 is used.

10. The high-pressure compaction and dehydration method according to claim 1, characterized in that: The high-pressure compaction and dehydration method comprises the following steps: Step 1: Lay the filter cloth in the filter cartridge; Step 2: Place the mushroom residue slurry on the filter cloth and tighten the filter cloth to obtain a mushroom residue slurry bag; Step 3: Turn on the lifting mechanism to drive the mushroom residue slurry bag to move toward the pressing roller and contact the pressing roller; Step 4: Continue to drive the mushroom residue slurry bag to move towards the pressing roller, turn on the pressing roller, and press the pressing roller to press and dehydrate the mushroom residue slurry in the mushroom residue slurry bag.

Images