Cloth pressing and feeding structure and filter pressing structure

Abstract

The utility model discloses a cloth pressing and feeding structure and a filter pressing structure, and belongs to the technical field of separation equipment. The cloth pressing feeding structure comprises a sealing ring and a sealing gasket, the sealing gasket is connected to the peripheral face of the sealing ring, and the front face of the sealing gasket and the front face of the connecting position of the sealing ring and the sealing gasket are both concaved inwards to form feeding flow channels. According to the cloth pressing feeding structure and the filter pressing structure provided by the utility model, the feeding flow channel formed by the two sealing gaskets which are oppositely combined is clamped between the two pieces of filter cloth, so that materials enter the filter cavity after being dispersed by the feeding flow channel; the edges of the left side, the right side and the lower side of the filter cloth are open, so that the shaking amplitude of the filter cloth is ensured, and the unloading efficiency and effect are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cloth pressing feeding structure and filter pressing structure and belongs to the technical field of separating equipment. BACKGROUND

[0002] The filter pressing machine is used for realizing solid-liquid separation, and the main filtering elements in the filter pressing machine are filter plates and filter cloths, each filter plate is covered with filter cloth, and a filtering chamber wrapped by filter cloth is formed between adjacent filter plates. After the material enters the filtering chamber, solid components are intercepted in the filtering chamber by the filter cloth to form filter cake, and filtrate passes through the filter cloth and is discharged from the liquid outlet hole at the bottom of the filter plate. Then, the filter cake is extruded and dewatered by using a squeezing structure to reduce the water content of the filter cake. Finally, the filter plates are pulled apart, the filter cake is removed from the surface of the filter cloth, and the solid-liquid separation is completed.

[0003] For the currently publicly used outer-cross-ear type single-chamber feeding filter plate, outer-cross-ears are arranged at four corners of the filter plate, a main feeding channel is arranged on one of the upper outer-cross-ears, and the main feeding is communicated with the filtering chamber through a single-plate feeding hole and a shunt hole. During operation, the material enters the filter plate chamber through the main feeding channel, the single-plate feeding hole and the shunt hole. This feeding mode is single-chamber closed feeding, the single-plate feeding hole and the shunt hole are relatively small in size, the feeding speed is slow, and the processing technology is relatively complex. Moreover, the filter plate has relatively strict requirements on the material characteristics, which limits the application of the filter plate.

[0004] Secondly, in the traditional filter pressing machine, the squeezing structure includes a squeezing pipeline arranged on one side outside the filter pressing machine, and the squeezing pipeline is connected with the drum membrane chamber inside the diaphragm filter plate through a hose. The squeezing structure has many external components, the components have a relatively complex processing technology and a high cost, and the hose has a small diameter and a slow squeezing speed.

[0005] Thirdly, during the plate pulling and discharging process of the filter pressing machine, there is a common problem that residual filter cake adheres to the filter cloth. For relatively viscous materials, the formed filter cake is more difficult to naturally fall off from the filter cloth. In order to solve this problem, the existing filter pressing machine uses a shaking mechanism to shake the filter plate or shake the filter cloth to realize the falling off of the filter cake. For the filter plate shaking and discharging mode, the filter plate handle is easily damaged. For the filter cloth shaking and discharging mode, because the filter cloth is fixed at the feeding hole part, the vibration amplitude of the filter cloth is limited, the discharging effect is not obvious, and the filter cloth is easily torn and damaged. INVENTION CONTENTS

[0006] The utility model discloses in order to solve the technical problems existing in the prior art, provides a cloth pressing feeding structure and filter pressing structure, improves the discharging efficiency and effect, and simplifies the external structure of the filter pressing machine.

[0007] The utility model discloses a technical scheme that realizes the above-mentioned purposes:

[0008] In one aspect, the utility model provides a kind of cloth pressing feed structure, including sealing ring and sealing gasket, the sealing gasket is connected on the outer circumferential surface of sealing ring, the front of sealing gasket, the front of sealing ring and sealing gasket connecting place are concave to form feed flow channel, the feed flow channel extends along the radial of sealing ring.

[0009] Preferably, the end of sealing gasket connected with sealing ring is the proximal end, the end of sealing gasket away from the proximal end is the distal end, and the distal end of sealing gasket is warped to the front without external force.

[0010] Preferably, the inside of the sealing gasket is provided with a curved metal sheet, which is used to warp the distal end of the sealing gasket to the front.

[0011] Preferably, a plurality of rows of shunt bumps are provided in the feed flow channel, and each row of shunt bumps separates the feed flow channel into a plurality of rows of unit flow channels.

[0012] Further, each row of shunt bumps is composed of a plurality of unit bumps arranged at intervals.

[0013] Further, a plurality of mounting holes are formed in the sealing ring.

[0014] On the other hand, the utility model also provides a kind of filter pressing structure, including filter plate and the cloth pressing feed structure, the filter plate includes filter plate main body, the middle part of the plate surface of filter plate main body is concave to form filter chamber, at least one top corner of filter plate main body is connected with outer cross ear, through hole is provided on outer cross ear, the axis of main feed hole is perpendicular to the plate surface, the plate surface of the top corner of filter plate main body is concave to form feed groove, one end of feed groove is communicated with the orifice of main feed hole, and the other end is communicated with filter chamber;Characterized in that, the main feed hole is provided as a countersunk hole, the countersunk hole is composed of a small-diameter hole in the middle and a large-diameter hole connected at the end of the small-diameter hole, the sealing ring is embedded in the large-diameter hole, the sealing gasket is embedded in the feed groove, and the distal end of the sealing gasket extends to the filter chamber.

[0015] Further, a pressing hole is provided through the outer cross ear, and the axis of the pressing hole is perpendicular to the plate surface.

[0016] When the filter plate is a diaphragm plate, a drum membrane chamber is provided inside the filter plate main body, and the pressing hole is communicated with the drum membrane chamber through an in-plate channel.

[0017] Further, the filter pressing structure provided by the utility model also includes filter cloth, the filter cloth is shielded on the surface of the filter plate main body, the filter cloth shields the edge of the filter chamber and the feed groove, but does not shield the main feed hole, the left side, right side and lower side edges of the filter cloth are not connected with the filter plate main body, and the sealing gasket is stacked on the surface of the filter cloth.

[0018] Further, the filter pressing structure also comprises a filter cloth shaking mechanism, and the filter cloth shaking mechanism comprises:

[0019] The shaking pipe is arranged above the filter plate body, the upper portion of the filter cloth is mounted on the shaking pipe, pin shaft holes and sleeve holes are respectively arranged on the upper side wall and the lower side wall of the shaking pipe, and the pin shaft holes and the sleeve holes are coaxially arranged;

[0020] The pin shaft is arranged on the top of the filter plate body, a limiting sleeve is coaxially arranged on the lower outer side of the pin shaft, the limiting sleeve is inserted into the limiting hole of the shaking pipe, and the upper portion of the pin shaft is inserted into the pin shaft hole of the shaking pipe;

[0021] The spring is sleeved on the upper portion of the pin shaft and is arranged in extrusion between the limiting sleeve and the upper side wall of the shaking pipe.

[0022] Further, the filter pressing structure also comprises a filter cloth shaking mechanism, and the filter cloth shaking mechanism comprises:

[0023] The cloth hanging rod;

[0024] A plurality of sleeve rings are arranged at intervals on the top of the filter cloth, the cloth hanging rod passes through the sleeve rings in sequence, and the cloth hanging rod is exposed between adjacent sleeve rings;

[0025] A plurality of cloth hanging hooks are arranged at intervals on the shaking pipe, and the exposed part of the cloth hanging rod is hung on the cloth hanging hooks.

[0026] Preferably, the top of the shaking pipe is provided with baffles at both ends, and the two ends of the cloth hanging rod are respectively abutted on the two baffles.

[0027] The beneficial effects of the utility model include but are not limited to:

[0028] The filter cloth pressing and feeding structure and the filter pressing structure are sealed by the gaskets, the left side, the right side and the lower side edges of the filter cloth are not connected with the filter plate body, when a plurality of filter plates are pressed, the plate surfaces around the filter cavities of adjacent filter plates are tightly attached to each other, the two filter cloths are clamped in the middle, and the filter cavity wrapped by the filter cloth is formed. Meanwhile, the feeding flow channel formed by the two gaskets is clamped between the two filter cloths, so that the material is dispersed through the feeding flow channel and then enters the filter cavity.

[0029] The upper end of the filter cloth is movably connected to the top of the filter plate body, and the filter cloth can move up and down under the action of external force; the left side, the right side and the lower side edges of the filter cloth are open, so that the shaking amplitude of the filter cloth is ensured.

[0030] When the filter plate body has a main feed hole and a pressing hole at both top corners, and is equipped with a filter cloth hanging mechanism and a filter cloth vibration mechanism, it can form a double-hole, top-feeding, pressing, and open-type filter cloth vibration, ensuring the feeding and pressing speed and the uniformity of the feed of the filter press, and improving the unloading efficiency and effect. Moreover, this utility model places the pressing hole for introducing pressing gas or pressing water on the outer lug, simplifying the external pipeline structure of the filter press. Attached Figure Description

[0031] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0032] Figure 1 A schematic diagram of the fabric pressing and feeding structure provided by this utility model when viewed from the front.

[0033] Figure 2 A schematic diagram of the fabric pressing and feeding structure provided by this utility model when viewed from the back.

[0034] Figure 3 A schematic diagram of the filter press structure provided by this utility model;

[0035] Figure 4 for Figure 3 Enlarged view of section A;

[0036] Figure 5 This is a schematic diagram of a diaphragm panel and a box-type panel;

[0037] Figure 6 A schematic diagram showing the filter cloth, filter cloth hanging mechanism, and filter cloth vibration mechanism provided by this utility model on the filter press structure;

[0038] Figure 7 A cross-sectional view of the filter press structure provided by this utility model;

[0039] Figure 8 This is a schematic diagram of a rapping tube;

[0040] Figure 9 for Figure 8 Enlarged view of section B;

[0041] Figure 10 A schematic diagram of the filter plate and the pins installed on its top;

[0042] Figure 11 This is a schematic diagram of the filter cloth and the hanging rod.

[0043] Figure 12 for Figure 11 Enlarged view of section C;

[0044] In the figure, 1, diaphragm plate; 2, compartment plate; 100, cloth pressing feeding structure; 110, sealing ring; 120, sealing gasket; 130, feeding flow channel; 140, flow dividing bump; 150, mounting hole; 200, filter plate main body; 210, filter chamber; 220, outer cross ear; 230, main feeding hole; 240, feeding groove; 250, multifunctional corner hole; 260, pressing hole; 270, in-plate passage; 300, filter cloth; 410, rapping pipe; 420, pin shaft; 430, spring; 440, limiting sleeve; 510, cloth hanging rod; 520, collar; 530, cloth hanging hook; 540, baffle; 550, cloth dropping rod; 560, lifting lug. DETAILED DESCRIPTION

[0045] To clearly illustrate the technical features of the present scheme, the present utility model will be described in detail below through specific embodiments, and in conjunction with the accompanying drawings.

[0046] It should be noted that in the following description, many specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present utility model is not limited by the specific embodiments disclosed below.

[0047] Embodiment 1:

[0048] As shown in the embodiments provided in the foregoing Figure 1 and Figure 2 The cloth pressing feeding structure 100 provided by the present embodiment includes a sealing ring 110 and a sealing gasket 120, the sealing gasket 120 is integrally connected to the outer peripheral surface of the sealing ring 110, the front surface of the sealing gasket 120 and the front surface of the connection part between the sealing ring 110 and the sealing gasket 120 are concave to form a feeding flow channel 130, and the feeding flow channel 130 extends along the radial direction of the sealing ring 110. Wherein, the front surface refers to the surface of the cloth pressing feeding structure exposed outside when the cloth pressing feeding structure is applied to the filter plate, and the back surface refers to the surface of the cloth pressing feeding structure blocked by abutting against the filter plate.

[0049] Taking the center of the circular sealing gasket 120 as the center, the end part of the sealing gasket 120 connected with the sealing ring 110 is the proximal end, and the end part of the sealing gasket 120 away from the proximal end is the distal end. The cloth pressing feeding structure has elasticity, and when not subjected to external force, the distal end of the sealing gasket 120 is raised towards the front surface, and when subjected to force, the distal end of the sealing gasket 120 can be pressed to be flush with the sealing ring 110.

[0050] Preferably, a curved metal sheet is arranged inside the sealing gasket 120, and the metal sheet is used to make the distal end of the sealing gasket raised towards the front surface. When manufacturing, the metal sheet is added to the glue in the mold, and hot pressing is performed to form the sealing gasket. The metal sheet can be made of alloy steel.

[0051] AsFigure 5 As shown, when the cloth pressing feeding structure is applied to the filter plate, the sealing gasket 120 is stacked on the filter cloth 300. After filtration is completed, the filter plate is pulled apart, and the distal end of the sealing gasket 120 naturally tilts upwards to separate from the filter cloth 300. With this configuration, when the filter cloth 300 is vibrated for unloading, the vibration of the filter cloth 300 will not be disturbed by the cloth pressing feeding structure, thus increasing the vibration amplitude of the filter cloth 300.

[0052] Furthermore, preferably, several rows of diversion protrusions 140 are provided in the feed channel 130, and each row of diversion protrusions 140 divides the feed channel 130 into multiple rows of unit channels. The diversion protrusions 140 can improve the compressive strength of the feed channel 130, and can also guide and divert the material, so that the material flows and disperses directionally from the feed channel 130 to the filter chamber 210.

[0053] Furthermore, each row of diversion bumps 140 consists of multiple spaced unit bumps, enabling multi-stage diversion, improving feed uniformity, and reducing the risk of feed channel blockage. The unit bumps can be cylindrical, square, or irregular in shape.

[0054] Typically, a number of mounting holes 150 are provided on the sealing ring 110, which penetrate the front and back of the sealing ring 110, and the mounting holes 150 are evenly distributed along the circumference of the sealing ring 110. When applied to a filter plate, the cloth pressing feeding structure is installed on the main feed hole 230 of the filter plate by screws passing through the mounting holes 150.

[0055] Example 2:

[0056] like Figure 3 and Figure 4 As shown in the figure, the filter press structure provided in this embodiment includes a filter plate and the cloth feeding structure described in Example 1.

[0057] The filter plate is an externally ventilated filter plate, specifically including a filter plate body 200. The filter plate body 200 has a recessed middle section in the plate surface to form a filter chamber 210. An externally ventilated ear 220 is connected to at least one apex of the filter plate body 200. A main feed hole 230 is provided through the externally ventilated ear 220. The axis of the main feed hole 230 is perpendicular to the plate surface. The plate surface at the apex of the filter plate body 200 is recessed to form a feed groove 240. One end of the feed groove 240 is connected to the opening of the main feed hole 230, and the other end is connected to the filter chamber 210.

[0058] The main feed hole 230 is set as a countersunk hole, which consists of a small diameter hole in the middle and a large diameter hole connected to the end of the small diameter hole. The sealing ring 110 is embedded in the large diameter hole, and the sealing gasket 120 is embedded in the feed groove 240. The distal end of the sealing gasket 120 extends to the filter chamber 210.

[0059] When the filter press is working, under the pressing action of the oil cylinder, the filter plates are pressed against each other, the main feed holes 230 on each filter plate are penetrated to form a feed channel, the sealing rings 110 and the sealing gaskets 120 on the adjacent filter plates are pressed against each other, so that the sealing ring 110 is pressed against the hole wall of the main feed hole 230 to form a seal, and at the same time, the feed flow channels 130 on the two sealing gaskets 120 are closed and circumferentially sealed, and then the material in the feed channel enters the filter chamber 210 through the feed flow channel 130. When the two sealing gaskets 120 are closed and sealed, the unit lugs inside the sealing gaskets are also closed to form a support, preventing the feed flow channel 130 from being deformed under pressure.

[0060] Generally, the filter plate body 200 adopts a square structure, and the outer cross ears 220 are arranged at the upper two top corners and the lower two bottom corners of the filter plate body 200, the main feed holes 230 are arranged on the upper two outer cross ears 220, and the cloth pressing and feeding structure is arranged on the two hole openings of the main feed holes 230. In addition, a multifunctional corner hole 250 penetrating through both side plate surfaces is usually arranged on the outer cross ear 220 at each bottom corner, and the bottom corner part of the filter chamber 210 on each side plate surface is in communication with the multifunctional corner hole 250. The liquid filtered through the filter cloth 300 enters the multifunctional corner hole 250 from the liquid outlet hole arranged at the bottom corner part, and finally flows out of the filter press.

[0061] As shown in Figures 3-5 In the preferred embodiment, a pressing hole 260 is arranged on the outer cross ear 220, and the axis of the pressing hole 260 is perpendicular to the plate surface, and the diameter of the pressing hole 260 can be adjusted according to actual needs. The utility model discloses a pressing hole 260 on the filter plate, and when the filter plates are pressed, the pressing holes 260 are connected to form a pressing channel for the pressing gas or water to enter, which solves the problem of arranging the pressing pipeline on one side of the filter press and connecting the pressing pipeline with the drum membrane chamber inside the diaphragm plate through an external hose in the traditional way, and simplifies the structure outside the filter press.

[0062] As shown in Figure 5 The diaphragm plate 1 and the compartment plate 2 are usually arranged alternately, the pressing gas enters the diaphragm plate from the gas channel, the diaphragm plate 1 is inflated, and the filter cake is pressed and dewatered. When the filter plate is a diaphragm plate, a drum membrane chamber is arranged inside the filter plate body 200, and the pressing hole 260 is in communication with the drum membrane chamber through a single or multiple in-plate channels 270.

[0063] Example 3:

[0064] As shown in Figure 6As shown in the drawings, the filter pressing structure provided by the embodiment further comprises filter cloth 300, which covers the surface of the filter plate. The filter cloth 300 covers the edges of the filter chamber 210 and the feed slot 240 and does not cover the main feed hole 230. The left side, right side and lower side edges of the filter cloth 300 are not connected with the filter plate, and the gasket 120 is stacked on the surface of the filter cloth 300. After a plurality of filter plates are pressed, the plate surfaces around the filter chamber 210 of the adjacent filter plates are tightly attached to each other, the two filter cloths 300 are clamped in the middle, and the filter chamber wrapped by the filter cloth 300 is formed. The feed flow channel 130 formed by the two gaskets 120 is clamped between the two filter cloths 300, so that the material enters the filter chamber through the feed flow channel 130.

[0065] In the traditional filter plate with outer cross-ear, the filter cloth needs to be fixed at the main feed hole part to make the filter cloth adhere to the surface of the filter plate, which causes the vibration amplitude of the filter cloth to be limited when the filter cloth is shaken to unload, and the filter cloth is easily pulled and damaged.

[0066] In the filter pressing structure provided by the embodiment, the upper end of the filter cloth 300 is movably connected to the top of the filter plate, so that the filter cloth 300 can move up and down under the action of external force. The left side, right side and lower side edges of the filter cloth 300 are open, which ensures the shaking amplitude of the filter cloth 300.

[0067] Embodiment 4:

[0068] As shown in the drawings, the filter pressing structure provided by the embodiment further comprises a filter cloth shaking mechanism, which comprises a shaking pipe 410, a pin shaft 420 and a spring 430. When the shaking pipe 410 is a hollow profile, it is light in weight and has sufficient strength to meet the shaking demand of the filter cloth 300. It can be understood that the shaking pipe 410 can also be a solid or hollow pipe with other cross-sectional shapes. Figures 6-10 Specifically, the shaking pipe 410 is arranged above the filter plate, and the upper part of the filter cloth 300 is installed on the shaking pipe 410. As shown in the drawings, when the shaking pipe 410 is a hollow pipe, pin shaft holes and sleeve holes are respectively arranged on the upper side wall and the lower side wall of the shaking pipe 410, and the pin shaft holes and the sleeve holes are coaxially arranged.

[0069] Figure 7 When the filter cloth is shaken to unload, the upward moving amplitude of the shaking pipe is usually not more than the height of the pin shaft 420. In order to further prevent the shaking pipe from moving upward and separating from the pin shaft, a nut or other anti-separation protrusion can be arranged at the upper end of the pin shaft.

[0070] As shown in the drawings, the filter pressing structure provided by the embodiment further comprises a filter cloth shaking mechanism, which comprises a shaking pipe 410, a pin shaft 420 and a spring 430. When the shaking pipe 410 is a hollow profile, it is light in weight and has sufficient strength to meet the shaking demand of the filter cloth 300. It can be understood that the shaking pipe 410 can also be a solid or hollow pipe with other cross-sectional shapes.

[0071] As shown in the drawings, the filter pressing structure provided by the embodiment further comprises a filter cloth shaking mechanism, which comprises a shaking pipe 410, a pin shaft 420 and a spring 430. When the shaking pipe 410 is a hollow profile, it is light in weight and has sufficient strength to meet the shaking demand of the filter cloth 300. It can be understood that the shaking pipe 410 can also be a solid or hollow pipe with other cross-sectional shapes. Figure 8 Figure 9 ​​As shown, the pin 420 is mounted on the top of the filter plate body via a fixing plate. A limiting sleeve 440 is coaxially provided on the lower outer side of the pin 420. The limiting sleeve 440 is inserted into a limiting hole on the vibrating tube 410, and the upper part of the pin 420 is inserted into a pin hole on the vibrating tube 410. The pin hole and the sleeve hole are not shown, as they are respectively covered by the pin and the limiting sleeve. The function of the limiting sleeve is to isolate the bottom of the spring from the sleeve hole on the lower wall of the vibrating tube, preventing the spring from getting stuck in the sleeve hole.

[0072] like Figure 7 As shown, the spring 430 is sleeved on the upper part of the pin 420 and is pressed between the limiting sleeve 440 and the upper wall of the vibrating tube 410.

[0073] When the vibrating cylinder vibrates the vibrating tube 410 downwards, the vibrating tube 410 first moves downwards, further compressing the spring 430. After the vibrating tube 410 reaches its lowest position, its speed becomes zero. Then, the elastic force of the spring 430 will bounce the vibrating tube 410 upwards, causing the filter cloth 300 to shake. Repeat the vibration of the vibrating tube 410 until the residual filter cake on the filter cloth 300 is fully dislodged.

[0074] Typically, two pins 420 are installed at the top of the filter plate to limit the two ends of the vibrating tube 410.

[0075] Example 5:

[0076] like Figures 6-12 As shown in the figure, the filter press structure provided in this embodiment also includes a filter cloth hanging mechanism.

[0077] Specifically, such as Figure 11 and Figure 12 As shown, the filter cloth hanging mechanism includes a hanging rod 510. Several loops 520 are spaced apart at the top of the filter cloth 300. The hanging rod 510 passes through each loop 520 sequentially, thus assembling the hanging rod 510 with the filter cloth 300. In actual manufacturing, a small section of the upper end of the filter cloth 300 can be folded downwards. The end of the filter cloth 300 is then pressed or sewn to the main body of the filter cloth 300. Notches are then cut at intervals in the folded portion, forming the loops 520 between the notches.

[0078] A plurality of cloth hanging hooks 530 are arranged on the beating-up tube 410 at intervals, and the cloth hanging rods 510 between the adjacent collars 520 are exposed, and the exposed parts of the cloth hanging rods 510 are hung on the cloth hanging hooks 530, so that the filter cloth 300 is installed on the beating-up tube 410 through the cooperation of the cloth hanging rods 510 and the cloth hanging hooks 530. The filter cloth 300 needs to be hung on both sides, so two rows of cloth hanging hooks need to be arranged on the beating-up tube 410. The cloth hanging hooks 530 can be angle steels, the vertical plates of the angle steels are connected with the beating-up tube 410, and the horizontal plates are blocked at the top of the vertical plates to prevent the cloth hanging rods 510 from falling off.

[0079] Further, in order to prevent the cloth hanging rods 510 from moving left and right and deviating, preferably, baffles 540 are arranged at both ends of the top of the beating-up tube 410, and the two ends of the cloth hanging rods 510 abut against the two baffles 540 respectively.

[0080] Further, the bottom of the filter cloth 300 is provided with a cloth falling rod 550, so as to improve the shaking effect of the filter cloth 300.

[0081] Further, the beating-up tube 410 is also provided with lifting lugs 560 at both ends, so as to facilitate loading and unloading.

[0082] It should be noted that the cloth pressing and feeding structure provided by the utility model can also be used in cooperation with other filter cloth beating mechanisms and filter cloth hanging mechanisms disclosed in the prior art, and is not limited to the structures shown in Embodiment 4 and Embodiment 5 of the application.

[0083] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.

[0084] In the utility model, unless otherwise specified and limited, the terms "arrange", "mount", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated, can be directly connected, or can be indirectly connected through an intermediate medium. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0085] The parts not described in the utility model are the known technology of the technical personnel in the technical field.

Claims

1. A press fabric feed structure, characterized by, The sealing ring and the sealing gasket are connected, the front surface of the sealing gasket and the front surface of the connection part of the sealing gasket and the sealing gasket are concave to form a feeding flow channel, and the feeding flow channel extends along the radial direction of the sealing ring.

2. The press fabric feed structure of claim 1, wherein, The end of the sealing gasket connected with the sealing ring is the proximal end, the end of the sealing gasket away from the proximal end is the distal end, and the distal end of the sealing gasket is warped to the front surface when no external force is applied. The inside of the sealing gasket is provided with a curved metal sheet, and the metal sheet is used to warp the distal end of the sealing gasket to the front surface.

3. The press fabric feed structure of claim 1, wherein, A plurality of rows of shunt protrusions are arranged in the feeding flow channel, and each row of shunt protrusions separates the feeding flow channel into a plurality of rows of unit flow channels.

4. The press fabric feed structure of claim 1, wherein, Each row of shunt protrusions is composed of a plurality of unit protrusions arranged at intervals.

5. The press fabric feed structure of claim 1, wherein, A plurality of mounting holes are arranged on the sealing ring.

6. A filter press structure comprising a filter plate and the cloth feeding structure according to any one of claims 1-5, the filter plate comprising a filter plate body, a filter chamber being formed in a middle portion of a plate face of the filter plate body, an outer span ear being connected to at least one top corner of the filter plate body, a main feeding hole being provided through the outer span ear, an axis of the main feeding hole being perpendicular to the plate face, a feeding groove being formed in the plate face at the top corner of the filter plate body, one end of the feeding groove being in communication with a hole opening of the main feeding hole and the other end of the feeding groove being in communication with the filter chamber; characterized in that, The main feeding hole is arranged as a counter-sunk hole, the counter-sunk hole is composed of a small-diameter hole in the middle and a large-diameter hole connected to the end of the small-diameter hole, the sealing ring is embedded in the large-diameter hole, the sealing gasket is embedded in the feeding groove, and the distal end of the sealing gasket extends to the filter chamber.

7. The filter press structure of claim 6, wherein, A pressing hole is arranged through the outer cross ear, and the axis of the pressing hole is perpendicular to the plate surface.

8. The filter press structure of claim 7, wherein, A drum membrane chamber is arranged in the inside of the filter plate body, and the pressing hole is communicated with the drum membrane chamber through an in-plate channel.

9. The filter press structure of claim 6, wherein, Further comprising a filter cloth, the filter cloth is shielded on the surface of the filter plate body, the filter cloth shields the edge of the filter chamber and the feeding groove, and does not shield the main feeding hole, the left side, the right side and the lower side edge of the filter cloth are not connected with the filter plate body, and the sealing gasket is laminated on the surface of the filter cloth.

10. The filter press structure of claim 9, wherein, Further comprising a filter cloth shaking mechanism, the filter cloth shaking mechanism comprises: A shaking pipe arranged above the filter plate body, the upper part of the filter cloth is installed on the shaking pipe, pin shaft holes and sleeve holes are arranged on the upper side wall and the lower side wall of the shaking pipe respectively, and the pin shaft holes and the sleeve holes are coaxially arranged; A pin shaft arranged on the top of the filter plate body, a limiting sleeve is coaxially arranged on the lower outer side of the pin shaft, the limiting sleeve is inserted into the limiting hole on the shaking pipe, and the upper part of the pin shaft is inserted into the pin shaft hole on the shaking pipe; A spring, the spring is sleeved on the upper part of the pin shaft and is pressed between the limiting sleeve and the upper side wall of the shaking pipe.

11. The filter press structure of claim 10, wherein, Further comprising a filter cloth hanging mechanism, the filter cloth hanging mechanism comprises: A cloth hanging rod; A plurality of sleeve rings arranged at intervals on the top of the filter cloth, the cloth hanging rod passes through each sleeve ring in sequence, and the cloth hanging rod is exposed between adjacent sleeve rings; A plurality of cloth hanging hooks arranged at intervals on the shaking pipe, and the exposed part of the cloth hanging rod is hung on the cloth hanging hooks.

12. The filter press structure of claim 11, wherein, The top of the shaking pipe is provided with baffles at both ends, and the two ends of the cloth hanging rod are respectively abutted against the two baffles.

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