Belt conveying device and mud cake processing system

By designing a belt conveyor with an inclined pulley and a trough belt structure, combined with a scraper and spray system, the problem of mud cake spillage during conveying was solved, achieving clean and efficient mud cake transportation.

CN223645568UActive Publication Date: 2025-12-09SICHUAN GOKIN SOLAR TECHNOLOGY CO LTD +1
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520095878.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-15
Publication Date
2025-12-09
Estimated Expiration
2035-01-15

AI Technical Summary

Technical Problem

In plate and frame filter presses, sludge cake with high moisture content is prone to spillage during belt conveying, leading to workshop contamination and additional cleaning work.

Method used

Design a belt conveyor device that uses an inclined wheel and a trough conveyor belt structure, combined with a scraper and a spray system to prevent mud cake from leaking from both sides of the belt, and to reduce the spillage of dirt through the double scraping action of the scraper and the discharge plate.

Benefits of technology

It effectively reduces the spillage rate of mud cake during the conveying process, keeps the workshop clean, and reduces the need for additional cleaning work.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223645568U_ABST
    Figure CN223645568U_ABST
Patent Text Reader

Abstract

The utility model relates to the field of mud cake conveying, in particular to a belt conveying device and a mud cake processing system, which comprise a support frame, a conveying belt and a driving component, the upper part and the lower part of the support frame are respectively and sequentially provided with a plurality of mutually parallel rotating wheel mounting shafts; the rotating wheel mounting shaft comprises a horizontal shaft, and a left inclined shaft and a right inclined shaft which are respectively arranged at two ends of the horizontal shaft; a left rotating wheel, a horizontal rotating wheel and a right rotating wheel are respectively mounted on the left inclined shaft, the horizontal shaft and the right inclined shaft; driving wheels are arranged at the front end and / or the rear end of the supporting frame, the two ends of wheel shafts of the driving wheels are rotationally connected with the supporting frame, and the output end of the driving assembly is in transmission connection with the wheel shafts of the driving wheels. The conveying belt comprises a horizontal part, a left inclined part and a right inclined part, wherein the left inclined part and the right inclined part are arranged at the two ends of the horizontal part respectively. The left rotating wheel, the horizontal rotating wheel, the right rotating wheel and the driving wheel are jointly sleeved with the conveying belt. The cement-containing cake conveying device can convey cement-containing cakes, and in the conveying process, the situation that dirt leaks to the ground of a workshop can be effectively reduced.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of mud cake conveying, and particularly relates to a belt conveying device and a mud cake processing system. BACKGROUND

[0002] The belt conveying device is mainly composed of a driving wheel, a driven wheel and an annular belt tensioned on the driving wheel and the driven wheel; due to tension, compression force is generated at the contact part of the belt and the wheel; when the driving wheel rotates, the belt is driven to rotate by friction; the belt conveying device is widely used in many dry material conveying fields due to its high efficiency and low cost.

[0003] In the environmental protection field, the belt conveying device is often used in conjunction with a plate-and-frame filter press to convey the mud cake filtered by the plate-and-frame filter press; however, due to the performance difference of the plate-and-frame filter press and the physicochemical property difference of the mud, the water content of the mud cake is different; when the mud cake with high water content falls on the belt, part of the mud cake powder will be scattered, a small amount of mud water will continuously leak, and the residual powder and mud water on the belt after the material is conveyed will drip and scatter, thereby polluting the workshop floor, affecting the "6S" of the workshop, and requiring additional manual cleaning. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a belt conveying device which can convey the mud cake with water and effectively reduce the leakage of dirt to the workshop floor during the conveying process, thereby reducing the scattering rate of the mud cake with high water content or avoiding the scattering of the mud cake with high water content.

[0005] Another object of the utility model is to provide a mud cake processing system which can effectively reduce the leakage of dirt to the workshop floor during the conveying process of the mud cake with water, thereby reducing the scattering rate of the mud cake with high water content or avoiding the scattering of the mud cake with high water content.

[0006] The technical solution of the utility model is as follows:

[0007] A belt conveying device comprises a support frame, a conveying belt and a driving assembly.

[0008] A plurality of mutually parallel rotating wheel mounting shafts are arranged on the upper and lower parts of the support frame in sequence; the rotating wheel mounting shafts on the upper part of the support frame are upper layer wheel shafts, and the rotating wheel mounting shafts on the lower part of the support frame are lower layer wheel shafts.

[0009] The rotating wheel mounting shaft comprises a horizontal shaft and left and right inclined shafts arranged at the two ends of the horizontal shaft respectively; the left and right inclined shafts of the upper layer wheel shaft are higher than the horizontal shaft, and the left and right inclined shafts of the lower layer wheel shaft are higher than the horizontal shaft;

[0010] The left inclined shaft, the horizontal shaft and the right inclined shaft are respectively provided with left, horizontal and right rotating wheels;

[0011] The front end and / or the rear end of the support frame are provided with driving wheels, the wheel shafts of the driving wheels are rotatably connected to the support frame, and the output end of the driving assembly is connected to the wheel shaft of the driving wheel for transmission;

[0012] The conveying belt comprises a horizontal part and left and right inclined parts arranged at the two ends of the horizontal part respectively, the left, horizontal and right rotating wheels and the driving wheels are jointly provided with the conveying belt, the left inclined part is arranged corresponding to the left inclined shaft, the horizontal part is arranged corresponding to the horizontal shaft, the right inclined part is arranged corresponding to the right inclined shaft, and the driving wheel is arranged corresponding to the horizontal part of the conveying belt.

[0013] Further, a scraper is arranged corresponding to the front end of the conveying belt, and the scraper is in close contact with the outer surface of the conveying belt.

[0014] Further, a collecting hopper is arranged at the front end of the belt conveying device, the collecting hopper comprises a discharging plate, the discharging plate is located below the front end of the conveying belt, and the scraper is fixedly arranged on the discharging plate through a supporting rod.

[0015] Further, the end surface of the scraper is a plane structure, and the end surface of the scraper is in corresponding contact with the horizontal part of the conveying belt.

[0016] Alternatively, the end surface of the scraper comprises a middle plane and left and right inclined planes arranged at the two ends of the middle plane respectively, the left inclined plane is in corresponding contact with the left inclined part, the middle plane is in corresponding contact with the horizontal part, and the right inclined plane is in corresponding contact with the right inclined part.

[0017] Further, the end surface of the discharging plate comprises a middle plane and left and right inclined planes arranged at the two ends of the middle plane respectively, the left inclined plane is in corresponding contact with the left inclined part, the middle plane is in corresponding contact with the horizontal part, and the right inclined plane is in corresponding contact with the right inclined part.

[0018] Further, the driving assembly comprises a motor, the motor is installed on the support frame through a motor base, an output shaft of the motor is connected with an axle of the driving wheel, or the output shaft of the motor is connected with the axle of the driving wheel through a shaft coupling.

[0019] Alternatively, the driving assembly comprises a motor and a transmission assembly, the motor is installed on the support frame through a motor base, an output shaft of the motor is connected with an axle of the driving wheel through the transmission assembly.

[0020] Further, the left inclined shaft and the right inclined shaft of the rotating wheel mounting shaft are symmetrically arranged about a horizontal shaft, and the left inclined part and the right inclined part of the conveying belt are symmetrically arranged about a horizontal part.

[0021] Further, the upper part of the conveying belt is located above the upper layer axle, and the lower part of the conveying belt is located below the lower layer axle.

[0022] Further, a spraying system and a waste collecting box are further included, a spraying opening of the spraying system is arranged corresponding to the bottom of the conveying belt, the spraying system is located in the waste collecting box, the spraying system is used for washing the outer surface of the conveying belt, and the waste collecting box is used for collecting the waste water after washing.

[0023] A mud cake processing system comprises a plate-and-frame filter press, and further comprises the belt conveying device, which is arranged at the rear end of the plate-and-frame filter press and is used for conveying the mud cake filtered by the plate-and-frame filter press.

[0024] Compared with the prior art, the mud cake processing system has the following beneficial effects:

[0025] The mud cake in the plate-and-frame filter press falls onto the top (upper surface) of the conveying belt, and under the driving of the driving assembly, the driving wheel rotates and drives the conveying belt to continuously move to the front end, and then the mud cake can be discharged from the front end of the conveying belt, and during the conveying of the conveying belt, the mud cake is conveyed on the horizontal part of the conveying belt due to the groove-shaped structure of the conveying belt, and the water-containing mud cake cannot run off from the two sides of the conveying belt due to the limiting and blocking effect of the left inclined part and the right inclined part on the two sides, so that the falling of the dirt to the workshop floor is reduced, the spilling rate of the mud cake with high water content is reduced, or even the spilling of the mud cake with high water content can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, based on the embodiments in the present application, all other embodiments obtained without creative labor are within the scope of protection of the present application.

[0027] Figure 1 Figure 2 is a left view structural schematic diagram of the belt conveying device of the present application;

[0028] Figure 2 Figure 3 is a cross-sectional structural schematic diagram of the present application at B-B; Figure 1

[0029] Figure 3 Figure 4 is a structure local enlarged view at A of the present application; Figure 1

[0030] Figure 4 Figure 5 is a connection structural schematic diagram between the scraper, the supporting rod and the discharging plate of the present application.

[0031] In the figure:

[0032] 1 - support frame; 2 - conveying belt; 201 - horizontal part; 202 - left inclined part; 203 - right inclined part;

[0033] 3 - rotating wheel mounting shaft; 301 - horizontal shaft; 302 - left inclined shaft; 303 - right inclined shaft;

[0034] 4 - driving assembly; 5 - scraper; 6 - supporting rod; 7 - collecting hopper; 701 - discharging plate; 8 - mud cake; 9 - driving wheel; 10 - left rotating wheel; 11 - horizontal rotating wheel; 12 - right rotating wheel. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical scheme in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application. ​​

[0037] It should be noted that like reference numerals and letters refer to like items in the several views, and once an item is defined in one view, it need not be further defined and explained in the subsequent views.

[0038] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, or is the orientation or position relationship commonly placed when the utility model product is used, and is merely for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are merely used for differentiation in description and cannot be understood as indicating or implying relative importance.

[0039] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0040] In the description of the utility model, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection" and "connection" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or can be connected inside two elements. 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.

[0041] Some embodiments of the utility model will be described in detail below with reference to the drawings. In the case of no conflict, the following examples and features in the examples can be combined with each other.

[0042] Example 1

[0043] Reference Figures 1-4 The embodiment provides a belt conveying device, which comprises a support frame 1, a conveying belt 2 and a driving assembly 4.

[0044] A plurality of mutually parallel rotating wheel mounting shafts 3 are sequentially arranged at the upper and lower portions of the support frame 1, both ends of the rotating wheel mounting shaft 3 are fixedly arranged with the support frame 1, the plurality of rotating wheel mounting shafts 3 located at the upper portion of the support frame 1 are upper layer axles, and the plurality of rotating wheel mounting shafts 3 located at the lower portion of the support frame 1 are lower layer axles.

[0045] Each rotating wheel mounting shaft 3 comprises a horizontal shaft 301 in the middle and left and right inclined shafts 302 and 303 arranged at both ends of the horizontal shaft 301 respectively; wherein the left and right inclined shafts 302 and 303 of the upper layer wheel shaft are both higher than the horizontal shaft 301, and the left and right inclined shafts 302 and 303 of the lower layer wheel shaft are both higher than the horizontal shaft 301; the upper layer wheel shaft and the lower layer wheel shaft are arranged symmetrically to facilitate the installation of the conveying belt 2;

[0046] The left rotating wheel 10, the horizontal rotating wheel 11 and the right rotating wheel 12 are respectively mounted on the left inclined shaft 302, the horizontal shaft 301 and the right inclined shaft 303;

[0047] The front end and / or the rear end of the support frame 1 are respectively provided with a driving wheel 9, both ends of the wheel shaft of the driving wheel 9 are respectively rotationally connected with the support frame 1, and the output end of the driving assembly 4 is connected with the wheel shaft of the driving wheel 9 for transmission; the driving assembly 4 is used to drive the rotation of the driving wheel 9 and the conveying belt 2;

[0048] The conveying belt 2 comprises a horizontal part 201 and left and right inclined parts 202 and 203 arranged at both ends of the horizontal part 201 respectively; the left rotating wheel 10, the horizontal rotating wheel 11, the right rotating wheel 12 and the driving wheel 9 are jointly sleeved with the conveying belt 2, and the left inclined part 202 is arranged correspondingly with the left inclined shaft 302, the horizontal part 201 is arranged correspondingly with the horizontal shaft 301, the right inclined part 203 is arranged correspondingly with the right inclined shaft 303, and the driving wheel 9 is arranged correspondingly with the horizontal part 201 of the conveying belt 2; after the installation of the conveying belt 2, the upper part of the conveying belt 2 is in an inverted trapezoidal groove structure;

[0049] Further comprising a scraper 5, the front end of the conveying belt 2 is correspondingly provided with the scraper 5, the scraper 5 is in close contact with the outer surface of the conveying belt 2, and when the conveying belt 2 rotates, the scraper 5 automatically scrapes the material on the conveying belt 2.

[0050] In the embodiment, the front end of the belt conveying device is further provided with a collecting hopper 7, which can be fixedly arranged on the ground or fixedly connected with the support frame 1; the collecting hopper 7 comprises a discharging plate 701, which is located below the front end of the conveying belt 2, and the scraper 5 is fixedly arranged on the discharging plate 701 through a supporting rod 6; the end surface structure of the scraper 5 has the following two design forms:

[0051] The first kind: the end surface of the scraper 5 is a plane structure (as shown in Figure 4 The end surface of the scraper 5 corresponds to the horizontal part 201 of the conveying belt 2;

[0052] The end surface of the second scraper 5 comprises a middle plane and left and right inclined planes respectively arranged at both ends of the middle plane, the left inclined plane is in contact with the left inclined part 202, the middle plane is in contact with the horizontal part 201, and the right inclined plane is in contact with the right inclined part 203.

[0053] The end surface of the second scraper 5 comprises a middle plane and left and right inclined planes respectively arranged at both ends of the middle plane, the left inclined plane is in contact with the left inclined part 202, the middle plane is in contact with the horizontal part 201, and the right inclined plane is in contact with the right inclined part 203.

[0054] In the embodiment, the driving assembly 4 comprises a motor, the motor is installed on the support frame 1 through a motor base, the output shaft of the motor is connected with the wheel shaft of the driving wheel 9, or the output shaft of the motor is connected with the wheel shaft of the driving wheel 9 through a shaft coupling.

[0055] Alternatively, the driving assembly 4 comprises a motor and a transmission assembly, the motor is installed on the support frame 1 through a motor base, and the output shaft of the motor is connected with the wheel shaft of the driving wheel 9 through the transmission assembly.

[0056] Preferably, the left inclined shaft 302 and the right inclined shaft 303 of the rotating wheel mounting shaft 3 are symmetrically arranged about the horizontal shaft 301, and the left inclined part 202 and the right inclined part 203 of the conveying belt 2 are symmetrically arranged about the horizontal part 201.

[0057] It should be noted that when the conveying belt 2 is jointly sleeved on the left rotating wheel 10, the horizontal rotating wheel 11, the right rotating wheel 12 and the driving wheel 9, the upper part of the conveying belt 2 is located above the upper layer of wheel shafts, and the lower part of the conveying belt 2 is located below the lower layer of wheel shafts (as shown in FIG. 8). Figure 2

[0058] The spraying system and the waste collecting box (not shown in the figure) are further included, the spraying port of the spraying system is arranged corresponding to the bottom of the conveying belt 2, the spraying system comprises a water tank, a water pump, a spraying pipe and a spray head, the input end of the water pump is connected into the water tank through a water pipe, and the spray head is connected with the output end of the water pump through the spraying pipe.

[0059] The spraying system is located in the waste collecting box, specifically, the spray head of the spraying system is located in the waste collecting box, the spraying port of the spray head is arranged corresponding to the bottom of the conveying belt 2, the bottom of the conveying belt 2 is washed through the spray head, self-cleaning is realized after the double-layer scraping of the scraper 5 and the discharging plate 701, the cleaning of the conveying belt 2 is further improved through the washing action of the spray head, after the outer surface of the conveying belt 2 is washed by the spraying system, the washed waste water falls into the waste collecting box, and the washed waste water is collected through the waste collecting box.​

[0060] Embodiment 2

[0061] The mud cake processing system comprises a plate-and-frame filter, and further comprises a belt conveying device arranged at the rear end of the plate-and-frame filter, wherein the mud cake 8 filtered by the plate-and-frame filter falls into the upper groove of the conveying belt 2 and lands on the upper surface of the horizontal part 201, and the conveying belt 2 is used to convey the mud cake 8.

[0062] The technical scheme of the utility model has the advantages of:

[0063] The mud cake 8 in the plate-and-frame filter falls into the top (upper surface) of the conveying belt 2, and under the driving of the driving assembly 4, the driving wheel 9 rotates and drives the conveying belt 2 to continuously move to the front end, and then the mud cake 8 can be discharged from the front end of the conveying belt 2, and during the conveying process of the conveying belt 2, since the conveying belt 2 has a groove-shaped structure and the upper part of the conveying belt 2 has an inverted trapezoidal groove-shaped structure, the mud cake 8 is conveyed on the horizontal part 201 of the conveying belt 2 and is limited and blocked by the left inclined part 202 and the right inclined part 203 on both sides, so that the mud cake 8 containing water cannot run off from both sides of the conveying belt 2, thereby reducing the falling of dirt to the workshop floor and reducing or even avoiding the spilling of the mud cake 8 with high water content.

[0064] Finally, it should be noted that: the above embodiments are only used to illustrate the technical scheme of the utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the scope of the technical scheme of the embodiments of the utility model.

[0065] The above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, and for those skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A belt conveyor, characterized in that The application relates to a belt conveying device. The upper and lower parts of the support frame (1) are respectively provided with a plurality of parallel rotating wheel installation shafts (3) in sequence; the rotating wheel installation shafts (3) located at the upper part of the support frame (1) are upper layer wheel shafts, and the rotating wheel installation shafts (3) located at the lower part of the support frame (1) are lower layer wheel shafts. The rotating wheel installation shaft (3) comprises a horizontal shaft (301) and left and right inclined shafts (302 and 303) arranged at the two ends of the horizontal shaft (301) respectively; the left and right inclined shafts (302 and 303) of the upper layer wheel shafts are higher than the horizontal shaft (301), and the left and right inclined shafts (302 and 303) of the lower layer wheel shafts are higher than the horizontal shaft (301). The left and right inclined shafts (302 and 303) are respectively provided with left, horizontal and right rotating wheels (10, 11 and 12). The front and / or rear end of the support frame (1) is provided with a driving wheel (9), the two ends of the wheel shaft of the driving wheel (9) are rotationally connected with the support frame (1), and the output end of the driving assembly (4) is connected with the wheel shaft of the driving wheel (9) for transmission. The conveying belt (2) comprises a horizontal part (201) and left and right inclined parts (202 and 203) arranged at the two ends of the horizontal part (201) respectively; the left, horizontal and right rotating wheels (10, 11 and 12) and the driving wheel (9) are jointly provided with the conveying belt (2), the left inclined part (202) is arranged in correspondence with the left inclined shaft (302), the horizontal part (201) is arranged in correspondence with the horizontal shaft (301), the right inclined part (203) is arranged in correspondence with the right inclined shaft (303), and the driving wheel (9) is arranged in correspondence with the horizontal part (201) of the conveying belt (2). The device further comprises a scraper (5), the front end of the conveying belt (2) is provided with the scraper (5), and the scraper (5) is in close contact with the outer surface of the conveying belt (2).

2. The belt conveyor of claim 1, wherein, The front end of the belt conveying device is further provided with a collecting hopper (7), the collecting hopper (7) comprises a discharging plate (701), the discharging plate (701) is located below the front end of the conveying belt (2), and the scraper (5) is fixedly arranged on the discharging plate (701) through a supporting rod (6).

3. The belt conveyor of claim 2, wherein, The end surface of the scraper (5) is a plane structure, and the end surface of the scraper (5) is in correspondence with the horizontal part (201) of the conveying belt (2).

4. The belt conveyor of claim 3, wherein, Alternatively, the end surface of the scraper (5) comprises a middle plane and left and right inclined planes arranged at the two ends of the middle plane respectively, the left inclined plane is in correspondence with the left inclined part (202), the middle plane is in correspondence with the horizontal part (201), and the right inclined plane is in correspondence with the right inclined part (203). ​ 5. The belt conveyor of claim 4, wherein, The end surface of the blanking plate (701) comprises a middle plane and left and right inclined planes respectively arranged at both ends of the middle plane, the left inclined plane is in corresponding contact with the left inclined part (202), the middle plane is in corresponding contact with the horizontal part (201), and the right inclined plane is in corresponding contact with the right inclined part (203).

6. The belt conveyor of claim 1, wherein, The driving assembly (4) comprises a motor, the motor is installed on the support frame (1) through a motor base, the output shaft of the motor is connected with the wheel shaft of the driving wheel (9), or the output shaft of the motor is connected with the wheel shaft of the driving wheel (9) through a shaft coupling. Alternatively, the driving assembly (4) comprises a motor and a transmission assembly, the motor is installed on the support frame (1) through a motor base, and the output shaft of the motor is connected with the wheel shaft of the driving wheel (9) through the transmission assembly.

7. The belt conveyor of claim 1, wherein, The left inclined shaft (302) and the right inclined shaft (303) of the rotating wheel mounting shaft (3) are symmetrically arranged about the horizontal shaft (301), and the left inclined part (202) and the right inclined part (203) of the conveying belt (2) are symmetrically arranged about the horizontal part (201).

8. The belt conveyor of claim 1, wherein, The upper part of the conveying belt (2) is located above the upper layer of wheel shafts, and the lower part of the conveying belt (2) is located below the lower layer of wheel shafts.

9. The belt conveyor of claim 1, wherein, It also comprises a spraying system and a waste collecting box, the spraying opening of the spraying system is arranged corresponding to the bottom of the conveying belt (2), the spraying system is located in the waste collecting box, the spraying system is used for washing the outer surface of the conveying belt (2), and the waste collecting box is used for collecting the waste water after washing.

10. A press cake processing system comprising a plate and frame filter, characterized in that, It also comprises the belt conveying device of any one of claims 1-9, the belt conveying device is arranged at the rear end of the plate-and-frame filter press, and is used for conveying the mud cake (8) after being pressed by the plate-and-frame filter press.