A feedbox and press dewatering apparatus

Abstract

The utility model discloses a kind of feed box and squeezing dewatering equipment of technical field of dewatering equipment, wherein feed box, for squeezing dewatering equipment, specifically includes feed part, feed passage is formed inside feed part, movable plate is movably arranged at feed passage outlet, movable plate and the gap between filter belt of squeezing dewatering equipment, feed passage is communicated with gap, and movable plate can be based on the longitudinal movement of material amount in gap to the direction of far from filter belt. Wherein squeezing dewatering equipment, including the feed box and filter belt of first aspect, filter belt is rotatably arranged and at least partially passes through feed box. The above scheme is simplified and changes the intermediate stagnation stage in pre-pressing dewatering operation process, to realize the continuous operation of conveying and pre-pressing dewatering, simplify operation process and improve the squeezing dewatering efficiency.

Description

Technical Field

[0001] This utility model relates to the field of dehydration equipment technology, and in particular to a feeding box and a pressing dehydration device. Background Technology

[0002] Dehydration equipment is used for solid-liquid separation. Existing technology typically uses filter screens or filter plates for solid-liquid separation. This method requires external force to collect the solids after filtration before filtration can continue, resulting in low filtration efficiency.

[0003] Based on this, existing technologies have improved the form of filter screens or filter plates, using filter belts to complete the solid-liquid separation of materials during the conveying process. However, the water content of the solids is still relatively high at this time, so it is necessary to further reduce the water content of the solids.

[0004] To improve dewatering efficiency, existing technologies pre-press the solids before the main pressing process. Pre-pressing aims to initially reduce the moisture content of the solids and facilitate their handling and transport to the main pressing position. Existing technologies achieve pre-pressing by collecting solids from the filter belt and lightly squeezing the accumulated solids to reduce their moisture content. However, pre-pressing interrupts the filter belt's transport, thus reducing transport efficiency. Furthermore, actively collecting solids before squeezing out the wastewater adds to the operational steps and increases the failure rate during dewatering.

[0005] Therefore, providing a feed box and pressing dehydration equipment that can obtain solids with low moisture content while ensuring efficient dehydration is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] This utility model discloses a feeding box and a pressing and dehydrating device to solve the technical problem of low dehydration efficiency caused by the complex operation process of dehydration equipment in related technologies.

[0007] To solve the above problems, the present invention adopts the following technical solution: In a first aspect, this application provides a feeding box for a pressing and dewatering device, specifically including a feeding section, a feeding channel formed inside the feeding section, a pressure plate movably provided at the outlet of the feeding channel, a gap between the pressure plate and the filter belt of the pressing and dewatering device, the feeding channel communicating with the gap, and the pressure plate being able to move longitudinally away from the filter belt based on the amount of material in the gap.

[0008] Furthermore, the pressure plate is inclined above the gap, and the connection end of the pressure plate with the feed channel is higher than the end of the pressure plate that is far away from the feed channel.

[0009] Furthermore, the pressure plate includes an inclined plate section, one end of which is hinged to the feed channel, and the other end is fixed with a flat plate section, the bottom surface of which is parallel to the filter belt. And / or, the pressure plate is provided with several axially protruding ribs, which are fixedly connected to the pressure plate.

[0010] Furthermore, the pressure plate is provided with a damping structure, which is used to apply pressure toward the filter belt to the pressure plate.

[0011] Furthermore, the damping structure includes a guide rod, which is suspended above the pressure plate and fixed externally; A limit seat is fixed on the pressure plate. The position of the limit seat corresponds to the guide rod, and the guide rod can be inserted into the limit seat during the lifting of the pressure plate. The limiting seat is equipped with a compression spring. One end of the compression spring is fixed to the limiting seat, and the other end is sleeved on the guide rod and fixed to the guide rod.

[0012] Furthermore, the guide rod is provided with a limiting end, the position of which is adjustable, and the end of the compression spring is fixed to the limiting end.

[0013] Furthermore, the feeding section includes a feeding pipe, the inside of which forms a feeding channel, and the feeding pipe connects to the gap; Alternatively, the feeding section includes a feeding pipe and a buffer box. The interior of the feeding pipe and the interior of the buffer box are connected to form a feeding channel. The inlet end of the buffer box is connected to the feeding pipe, and the outlet end of the buffer box is connected to the gap. The flow space inside the buffer box gradually widens from the inlet end to the outlet end.

[0014] Furthermore, a flow-slowing grid is provided inside the flow-slowing box. The flow-slowing grid is detachably and fixedly connected to the flow-slowing box, and the flow-slowing grid faces the inlet end of the flow-slowing box. And / or, the outlet end of the slow flow box is provided with a backflow baffle, which is fixed to the bottom of the outlet end of the slow flow box. The backflow baffle is used to cut off the gap at the outlet of the feed channel.

[0015] Furthermore, a support mesh plate is provided below the pressure plate, and the filter belt of the pressing and dewatering equipment passes between the support mesh plate and the pressure plate. The outlet of the feed channel is connected to the top of the support mesh plate. And / or, side baffles are provided on both sides of the pressure plate, which are used to cut off the gap from the side of the pressure plate along the direction of filter belt movement.

[0016] Secondly, this application provides a pressing and dewatering device, including a feed box and a filter belt as described in the first aspect, wherein the filter belt is rotatably arranged and at least partially passes through the feed box.

[0017] The technical solution adopted in this utility model can achieve the following beneficial effects: This application directs the feed channel to the gap between the pressure plate and the filter belt. After the raw material is introduced, the liquid is filtered out by the filter belt, leaving solids. The accumulation of solids in the gap creates compression between solids, between the solids and the pressure plate, and between the solids and the filter belt. These compression actions achieve pre-pressing and dewatering of the solids. The longitudinal movement of the pressure plate after being compressed does not affect the conveying of the filter belt. The input of subsequent solids does not need to wait for the pre-pressing process of the previous solids to be completed, ensuring the continuity of the pre-pressing operation. Driven by the filter belt, the solids leaving the pressure plate area complete the pre-pressing and dewatering operation. There is no intermediate stagnation stage in this process, thus realizing continuous operation of conveying and pre-pressing and dewatering, simplifying the operation process and improving the pre-pressing and dewatering efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the feed box without side baffles in an embodiment of this application; Figure 2 This is a side view of the feed box without side baffles in an embodiment of this application; Figure 3 yes Figure 2 A magnified view of part A in the middle; Figure 4 This is a schematic diagram of the feed box structure including the side baffle in an embodiment of this application; Figure 5 This is a front view of the feed box according to an embodiment of this application; Figure 6 This is a rear view of the feed box according to an embodiment of this application; Figure 7 This is a schematic diagram of the flow-slowing grid structure according to an embodiment of this application; Figure 8 This is a cross-sectional view of the feed pipe and the buffer box according to an embodiment of this application; Figure 9 This is a schematic diagram of the pressing and dehydration equipment according to an embodiment of this application.

[0020] In the picture: 100. Feed pipe; 110. Feed channel; 120. Gap; 200. Inspection port; 210. Window; 220. Reinforcing rib; 300. Flow buffer box; 310. Support plate; 320. Return baffle; 350. Flow buffer grid; 351. Grid plate; 352. Support leg; 400. Hinge; 500. Pressure plate; 510. Inclined plate section; 520. Flat plate section; 530. Raised rib; 600. Damping structure; 610. Guide rod; 620. Compression spring; 630. Limiting seat; 640. Limiting end; 700. Support mesh plate; 800. Side baffle; 810. Covering layer; 900. Filter belt. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0023] In existing technologies, the raw material transportation and pressing / dehydration operations are typically performed separately. For example, the solid-liquid mixture is transported to a corresponding cylinder, tank, or drum for filtration and pressing / dehydration; or the solid-liquid mixture undergoes preliminary filtration during transportation before being fed into the corresponding cylinder, tank, or drum for pressing / dehydration. Therefore, the pressing / dehydration operations in existing technologies cannot be performed continuously. After transportation and pressing / dehydration, the dehydrated solids must be cleaned before the next pressing / dehydration operation can be performed.

[0024] The inventors discovered during operation that the solids obtained from only filtering water during the raw material transport process had a high water content, which would occupy a large space during the formal pressing and dehydration process. Furthermore, the high water content of the solids increased transportation costs, necessitating pre-pressing and dehydration of this portion of the raw material. Since the solid content in the solid-liquid mixture of raw materials is generally low, the process of collecting the solids in containers during raw material transport required a certain accumulation time. The inventors discovered that the accumulation process of the solids could be utilized to create mutual compression between the solids, thereby achieving pre-pressing and dehydration during the accumulation process. This avoids the interruption of the separate raw material transport and pressing / dehydration steps, improving the efficiency of pressing and dehydration.

[0025] The following is in conjunction with the appendix Figures 1 to 9 The present application provides a detailed description of a feed box through specific embodiments and application scenarios.

[0026] Please see Figure 1 and Figure 9 This application discloses a feeding box for a pressing and dewatering device, specifically including a feeding section with a feeding channel 110 inside. The feeding section uses the feeding channel 110 to introduce raw materials in a solid-liquid mixed state. The feeding section can be implemented using a tank, cylinder, box, or other structures, as long as it has a feeding channel 110 capable of allowing raw materials to pass through. A pressure plate 500 is movably installed at the outlet of the feeding channel 110. A gap 120 exists between the pressure plate 500 and the filter belt 900 of the pressing and dewatering device. The feeding channel 110 communicates with the gap 120, and the pressure plate 500 can move longitudinally away from the filter belt 900 based on the amount of material in the gap 120. The pressure plate 500 is movable at the outlet of the feeding channel 110, including lifting or rotating. Its purpose is to accumulate solids under the pressure plate 500 during the raw material conveying process, and to utilize the pressure of the pressure plate 500 and the accumulation of the solids to create a squeezing effect to complete the pre-pressing operation.

[0027] When the feed channel 110 conveys the solid-liquid mixture into the gap 120, the material begins to pass through the filter screen for filtration upon entering the gap 120. The solids remain on the filter screen in a relatively scattered state. The filter screen carries the solids and continues to transport them along the conveying direction. When the solids in the gap 120 encounter the pressure plate 500, they are first affected by the friction between the pressure plate 500 and the filter belt 900, preventing the solids from continuing to move along the conveying direction. At this time, the solids accumulate in the gap 120. When enough solids have accumulated, the space in the gap 120 is occupied, so the solids begin to be squeezed against the pressure plate 500 and the filter belt 900. At this time, one side of the filter belt 900 remains stable due to the limitation of the pressing and dewatering equipment. After being squeezed, the pressure plate 500 is pushed upward by the solids. Under the action of gravity, the pressure plate 500 continues to squeeze towards the gap 120. The solids continue to accumulate and move towards the conveying direction under the action of the filter belt 900. In this process, there will be two situations: the pressure plate 500 squeezes the solids towards the filter belt 900 and the solids squeeze each other during the accumulation process. The squeezed liquid is filtered out from the filter belt 900, thereby achieving the effect of dewatering and sorting the accumulated solids in the pre-pressing operation.

[0028] In this embodiment, the gap 120 effectively allows for the accumulation of solid materials, forcing them to resist and longitudinally lift the pressure plate 500 before continuing to be conveyed. In this embodiment, the longitudinal direction is the direction forming an angle with the surface of the filter belt 900, and most preferably, it is perpendicular to the surface of the filter belt 900. A larger amount of material in the gap 120 indicates more material accumulation within it, thus allowing the pressure plate 500 to be pushed longitudinally a greater distance. Since the material subjected to the maximum force in the conveying direction of the filter belt 900 is located on the surface of the filter belt 900, this material is not only compressed by the pressure plate 500 but also by the material accumulated on it. Therefore, the dehydration rate of the material conveyed by the filter belt 900 through the pressure plate 500 meets the requirements.

[0029] Please refer to some embodiments of this application. Figure 2Solid materials need to accumulate during transportation. However, if the pressure plate 500 is parallel to the filter belt 900, the accumulation of solid materials can only be achieved through friction. A large amount of solid material will pass directly through the gap 120 under the conveying of the filter belt 900. If solid material cannot be accumulated, the pressure plate 500 cannot compress the solid material, thus failing to complete the pre-pressing and dewatering operation or achieving a poor effect in the pre-pressing and dewatering operation. By tilting the pressure plate 500 above the gap 120, the tilted space formed by the pressure plate 500 within the gap 120 can be effectively utilized to complete the solid material accumulation operation. Because the connection end between the pressure plate 500 and the feed channel 110 is higher than the end of the pressure plate 500 furthest from the feed channel 110, solids are more likely to accumulate within the gap 120. Furthermore, the solids in the first batch of raw material, after accumulating at a position far from the feed channel 110, can quickly contact the pressure plate 500. Subsequent batches of raw material require even more accumulation to reach the pressure plate 500, thus the subsequently accumulated solids exert a pushing force on the first batch. The combination of the pushing force of the subsequent solids and the pressure exerted by the pressure plate 500 using gravity creates a squeezing and dehydrating effect on the solids. This process completes the squeezing and dehydration of the solids after they move longitudinally away from the pressure plate 500 and exit its range.

[0030] In some embodiments of this application, although the raw materials are pre-pressed and dehydrated when they are piled up in the inclined space, it takes time for the liquid to be filtered out from the filter belt 900. Since the dehydrated solids have water-absorbing properties, the pressure plate 500 is configured with an inclined plate section 510 and a flat plate section 520. One end of the inclined plate section 510 is hinged to the feed channel 110, and the height difference between the feed channel 110 and the filter belt 900 creates an inclined effect and forms an inclined space. The hinge connection between the inclined plate section 510 and the feed channel 110 can be a hinge 400 connection, a shaft hinge, a ball joint connection, or a connecting rod hinge, etc. The other end of the inclined plate section 510 is fixed with a flat plate section 520. The bottom surface of the flat plate section 520 is parallel to the filter belt 900, thereby forming stable pressure on the pre-pressed and dehydrated solids through the flat plate section 520, preventing backflow of the solids. Moreover, the arrangement of the inclined plate section 510 and the flat plate section 520 also ensures that the pressure plate 500 will not have large gaps during the lifting process, thus preventing the flow and leakage of unpressed and dehydrated solids. In this embodiment, the inclined plate section 510 and the feed channel 110 are connected by a hinge 400. Because the connection surface of the hinge 400 is large, it can support the rotation of the pressure plate 500 with a greater weight. Furthermore, the hinge 400 has a limited range of rotation, which can help limit the movement of the pressure plate 500, thereby ensuring that the pressure plate 500 is within a suitable range of motion.

[0031] Please refer to some embodiments of this application. Figure 1 and Figure 4The pressure plate 500 has several axially arranged protruding ribs 530, which are fixedly connected to the pressure plate 500. The protruding ribs 530 ensure the shape of the pressure plate 500, thereby avoiding local deformation of the pressure plate 500 during the local accumulation of solids. In addition, the protruding ribs 530 can also effectively improve the overall compressive strength of the pressure plate 500 on the solids, thereby improving the efficiency of pressing and dewatering.

[0032] Please refer to some embodiments of this application. Figure 5 Because the pressure of the press plate 500 is limited by gravity, the solids in the raw material will be dehydrated unevenly during the accumulation process. Under the drag of the filter belt 900, some of the solids that are not fully dehydrated will also be transported out from under the press plate 500. Therefore, a damping structure 600 is provided on the press plate 500. The damping structure 600 is used to apply pressure to the press plate 500 towards the filter belt 900, thereby increasing the pressure of the press plate 500 on the solids and achieving a better pre-pressing and dehydration effect.

[0033] Please refer to some embodiments of this application. Figure 3 Since the movement direction of the pressure plate 500 can be longitudinally perpendicular to the filter belt 900, or it can be lifted along an arc trajectory during rotation, the guide rod 610 of the damping structure 600 needs to be suspended above the pressure plate 500 and fixed to the outside. This satisfies both the longitudinal vertical lifting requirement and the arc trajectory lifting requirement, without restricting the longitudinal movement of the pressure plate 500.

[0034] To ensure the stability of the lifting process of the pressure plate 500 and to prevent excessive lifting of the pressure plate 500 from causing a large amount of solid material to leak out before dehydration, a limiting seat 630 is fixed on the pressure plate 500. The position of the limiting seat 630 corresponds to the guide rod 610, and the guide rod 610 can be inserted into the limiting seat 630 during the lifting process of the pressure plate 500. This allows the cooperation between the limiting seat 630 and the guide rod 610 to effectively limit the lifting of the pressure plate 500, ensuring the pressure plate 500 has free lifting space while preventing excessive lifting.

[0035] The resistance in the damping structure 600 is provided by a compression spring 620 provided on the limiting seat 630. One end of the compression spring 620 is fixed to the limiting seat 630, and the other end is sleeved on the guide rod 610 and fixed to the guide rod 610, thereby forming a resistance between the limiting seat 630 and the guide rod 610. This resistance acts on the pressure plate 500 to assist the pressure plate 500 in compressing the solid object.

[0036] In some embodiments of this application, since the types of raw materials fed through the feed channel 110 are numerous and the types of solids vary considerably, different pressures are required for different raw materials to complete the pressing and dehydration. Even with the same raw material, the pressure needs to be adjusted based on the required moisture content of the solids. Given the inconvenience of adjusting the weight of the pressure plate 500, adjusting the resistance of the damping structure 600 is more convenient. Therefore, a limiting end 640 is provided on the guide rod 610, and the position of the limiting end 640 on the guide rod 610 is adjustable. The end of the compression spring 620 is fixed to the limiting end 640. When encountering the limiting end 640 at different positions, the compression amount of the compression spring 620 varies, thus providing different pressures to the pressure plate 500. In this embodiment, a screw can be used as the guide rod 610, and a nut as the limiting end 640, facilitating the adjustment of the position of the limiting end 640. Alternatively, a snap-fit ​​structure or a pin structure, or other detachable adjustment methods, can be used to adjust the position of the limiting end 640.

[0037] The materials mentioned in the embodiments of this application are solid separations containing a small amount of moisture. They can be soil or other muddy pollutants, solid intermediate products, solid products, muddy waste, slurry, waste residue, etc., and do not specifically refer to soil.

[0038] In some embodiments of this application, the feeding section includes a feeding pipe 100, with a feeding channel 110 formed inside the feeding pipe 100, and the feeding pipe 100 connecting to the gap 120. When the feeding pipe 100 is used as the feeding section, the pressure plate 500 is directly and movably connected to the feeding pipe 100. At this time, the raw material is directly injected into the gap 120. The raw material can be prevented from being directly ejected from the gap 120 by increasing the length of the gap 120 and / or adjusting the feeding pressure at the feeding pipe 100, thereby ensuring the normal operation of the pre-pressing and dewatering.

[0039] In other embodiments of this application, please refer to Figure 8 The feeding section includes a feed pipe 100 and a flow buffer 300. The interior of the feed pipe 100 and the interior of the flow buffer 300 are connected to form a feed channel 110. The inlet end of the flow buffer 300 is connected to the feed pipe 100, and the outlet end of the flow buffer 300 is connected to the gap 120. The flow space within the flow buffer 300 gradually widens from the inlet end to the outlet end. Adding a flow buffer 300 after the feed pipe 100 can reduce the impact when the raw material enters the gap 120, thereby allowing the raw material to flow slowly within the gap 120 and enhancing the effect of pre-pressing and dewatering. When the feed pipe 100 is replaced by other feeding and conveying equipment such as a trough or box, the addition of the flow buffer 300 can also force the raw material to flow slowly.

[0040] The flow chamber 300 is provided with an inspection port 200, which includes a window 210 and a reinforcing rib 220. The window 210 is used to observe the fluid flow state inside the flow chamber 300, and the reinforcing rib 220 is used to strengthen the strength of the window 210.

[0041] The basic slow-flow effect of the slow-flow chamber 300 is achieved by releasing the relatively narrow portion of the feed pipe 100 into the relatively wide flow space within the slow-flow chamber 300 through the feed channel 110, thus achieving the purpose of slow flow. Based on this, the flow path within the slow-flow chamber 300 further releases the impact force of the raw material flowing out, thereby reducing the flow velocity of the raw material entering the gap 120. In this embodiment, the flow space within the slow-flow chamber 300 gradually widens from the inlet to the outlet. Therefore, as the raw material flows within the slow-flow chamber 300, the flow space gradually increases. With the increase in flow space, the fluid pressure decreases, and the gradually widening flow space also releases the impact force of the raw material entering the gap 120. The raw material is effectively in a slow-flow state when fed into the gap 120, allowing it to accumulate and be squeezed after liquid filtration, achieving the effect of pressing and dehydration.

[0042] A support plate 310 is provided at the bottom of the slow flow box 300. The support plate 310 is used to support the slow flow box 300 and control the outlet orientation angle of the slow flow box 300, so that the fluid in the slow flow box 300 can flow to the gap 120, avoiding the backflow of raw materials and causing blockage of the feed channel.

[0043] The connection position between the pressure plate 500 and the feeding section can ensure that the raw materials fed into the feeding channel 110 of the feeding section enter the gap 120 and do not leak from the top of the pressure plate 500.

[0044] Please refer to some embodiments of this application. Figure 6 and Figure 8 The flow-regulating box 300 is equipped with a flow-regulating grid 350, which is detachably and fixedly connected to the flow-regulating box 300. The flow-regulating grid 350 faces the inlet end of the flow-regulating box 300. The flow-regulating grid 350 is used to disperse the fluid and absorb the fluid's energy. When the fluid enters the flow-regulating box 300 from the feed pipe 100, it directly impacts the flow-regulating grid 350. During the process of the fluid being diverted by the flow-regulating grid 350, the flow velocity is reduced, and the fluid can also be prevented from directly impacting other components inside the flow-regulating box 300, thus protecting the structure of the flow-regulating box 300. Because the flow-regulating grid 350 is directly impacted by the fluid, it is detachably fixed to the flow-regulating box 300 for easy maintenance and replacement.

[0045] Based on this, please see Figure 7The flow-retarding grid 350 includes a grid plate 351, which is spaced apart from the outlet end of the feed pipe 100. Support legs 352 are fixed to both sides of the bottom of the grid plate 351, and these supports 352 are detachably and fixedly connected to the flow-retarding box 300. The distance between the grid plate 351 and the outlet end of the feed pipe 100 ensures that the raw material, after entering the flow-retarding box 300, undergoes spatial release before flowing through the grid plate 351, thus preventing the fluid from flowing through the grid plate 351 without spatial release, which would weaken the flow-retarding effect. The supports 352 on both sides of the grid plate 351 improve its stability and prevent damage caused by fluid scouring back and forth at the grid plate 351.

[0046] The window 210 of the inspection port 200 can also be used to effectively observe the status of the grating plate 351, so that it can be dealt with in a timely manner when the grating plate 351 is blocked or damaged.

[0047] In some embodiments of this application, see Figure 2 Because the raw material in gap 120 is in a flowing state, it is prone to backflow if agitation occurs after entering gap 120, resulting in waste. Therefore, a backflow baffle 320 is provided at the outlet end of the slow flow box 300. The backflow baffle 320 effectively prevents the loss of raw material during the backflow process from gap 120. The backflow baffle 320 is fixed to the bottom of the outlet end of the slow flow box 300 and is used to block gap 120 at the outlet of feed channel 110. By setting the backflow baffle 320 at the bottom of the outlet end of the slow flow box 300, the backflow of raw material can be blocked without affecting the feeding of raw material from feed channel 110 to gap 120. It also plays a supporting role in the outlet of slow flow box 300, thereby ensuring the stability of the outlet position of slow flow box 300 and also helping to ensure the stability of raw material feeding.

[0048] Please refer to some embodiments of this application. Figures 1 to 6 and Figure 9 When using the filter belt 900 as a bottom support for pressing and dewatering, the filter belt 900 is prone to deformation during compression due to its inherent flexibility. Deformation of the filter belt 900 weakens the pressing and dewatering effect. Therefore, a support mesh plate 700 is installed below the pressure plate 500. The filter belt 900 passes between the support mesh plate 700 and the pressure plate 500, and the outlet of the feed channel 110 connects to the top of the support mesh plate 700. The support mesh plate 700 effectively supports the filter belt 900 while ensuring filtration efficiency, thus preventing deformation of the filter belt 900 during material compression and the resulting weakening of the pressing and dewatering effect.

[0049] In some embodiments of this application, side baffles 800 are provided on both sides of the pressure plate 500. The side baffles 800 are used to block the gap 120 from the side of the pressure plate 500 along the movement direction of the filter belt 900. When there are no restrictions on the sides of the pressure plate 500, the flow direction of the raw material is unrestricted. Although most solids will be transported along the movement direction of the filter belt 900 under the action of the filter belt 900, there is still a risk that some solids will leak from the side, especially at the location where solids accumulate, where the risk is higher. The embodiments of this application restrict the solid material transport channel by providing side baffles 800 on the side of the pressure plate 500, thereby preventing the risk of solids leaking from the side. A covering layer 810 is also provided on the surface of the side baffle 800. The covering layer 810 is used to enhance the sealing performance of the side baffle 800. The covering layer 810 can be made of rubber. In this way, when the side baffle 800 is made of metal, the covering layer 810 can also protect the side baffle 800 and prevent it from rusting.

[0050] Please see Figure 9 This application provides a pressing and dehydration device, specifically including a feed box and a filter belt 900 in the first aspect, wherein the filter belt 900 is rotatably arranged and at least partially passes through the feed box.

[0051] In this embodiment, the filter belt 900 is configured to rotate. It can be driven to rotate using existing structures such as pulleys or shafts. This effectively utilizes the rotation of the filter belt 900 to ensure continuous movement of the solid material within the feed box. In this embodiment, the filter belt 900 drives the solid material to accumulate within the feed box and completes pre-pressing and dewatering, thereby obtaining solid material with lower moisture content. Accumulating solid material during pre-pressing facilitates improved dewatering efficiency during subsequent formal pressing and dewatering.

[0052] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0053] Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0054] The above description is only a specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A feedbox for a press dewatering apparatus, characterized in that, The device includes a feeding section, which has a feeding channel (110) inside. A pressure plate (500) is movably provided at the outlet of the feeding channel (110). There is a gap (120) between the pressure plate (500) and the filter belt (900) of the pressing and dewatering device. The feeding channel (110) is connected to the gap (120), and the pressure plate (500) can move longitudinally away from the filter belt (900) based on the amount of material in the gap (120).

2. A feedbox according to claim 1, wherein, The pressure plate (500) is inclined above the gap (120), and the connection end of the pressure plate (500) with the feed channel (110) is higher than the end of the pressure plate (500) away from the feed channel (110).

3. A feedbox according to claim 2, wherein, The pressure plate (500) includes an inclined plate section (510), one end of which is hinged to the feed channel (110), and the other end is fixed with a flat plate section (520), the bottom surface of which is parallel to the filter belt (900). And / or, the pressure plate (500) is provided with a plurality of protruding ribs (530) axially, and the protruding ribs (530) are fixedly connected to the pressure plate (500).

4. A feedbox according to any one of claims 1 to 3, wherein The pressure plate (500) is provided with a damping structure (600) for applying pressure toward the filter belt to the pressure plate (500).

5. A feedbox according to claim 4, wherein, The damping structure (600) includes a guide rod (610) which is suspended above the pressure plate (500) and fixed to the outside; A limiting seat (630) is fixed on the pressure plate (500). The position of the limiting seat (630) corresponds to the guide rod (610), and the guide rod (610) can be inserted into the limiting seat (630) during the lifting of the pressure plate (500). The limiting seat (630) is provided with a compression spring (620). One end of the compression spring (620) is fixed to the limiting seat (630), and the other end is sleeved on the guide rod (610) and fixed to the guide rod (610).

6. A feedbox according to claim 5, wherein, The guide rod (610) is provided with a limiting end (640), the position of the limiting end (640) on the guide rod (610) is adjustable, and the end of the compression spring (620) is fixed to the limiting end (640).

7. A feedbox according to any one of claims 1 to 3, wherein The feeding section includes a feeding pipe (100), the inside of which forms a feeding channel (110), and the feeding pipe (100) is connected to the gap (120). Alternatively, the feeding section includes a feeding pipe (100) and a buffer box (300), the interior of the feeding pipe (100) and the interior of the buffer box (300) are connected to form the feeding channel (110), the inlet end of the buffer box (300) is connected to the feeding pipe (100), the outlet end of the buffer box (300) is connected to the gap (120), and the flow space in the buffer box (300) gradually widens from the inlet end to the outlet end.

8. A feedbox according to claim 7, wherein, The flow control box (300) is provided with a flow control grid (350), which is detachably and fixedly connected to the flow control box (300). The flow control grid (350) is directly opposite the inlet end of the flow control box (300). And / or, the outlet end of the slow flow box (300) is provided with a return baffle (320), the return baffle (320) is fixed to the bottom of the outlet end of the slow flow box (300), and the return baffle (320) is used to block the gap (120) at the outlet of the feed channel (110).

9. A feeding box according to any one of claims 1 to 3, characterized in that, A support mesh plate (700) is provided below the pressure plate (500), and the filter belt of the pressing and dewatering equipment passes between the support mesh plate (700) and the pressure plate (500). The outlet of the feed channel (110) is connected to the top of the support mesh plate (700). And / or, side baffles (800) are provided on both sides of the pressure plate (500), and the side baffles (800) are used to block the gap (120) from the side of the pressure plate (500) along the direction of filter belt movement.

10. A pressing and dehydration device, characterized in that, Includes a feed box and filter belt (900) as described in any one of claims 1 to 9, wherein the filter belt (900) is rotatably arranged and at least partially passes through the feed box.

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