CN210456342U

CN210456342U - Flexible press belt assembly and belt conveyor system

Info

Publication number: CN210456342U
Application number: CN201920339808.0U
Authority: CN
Inventors: 杨晓东; 刘福明; 杨志勇; 樊建业; 杨龙军; 胡桂林; 谢苗; 高春彪; 刘治翔; 卢进南
Original assignee: Xinjiang Tianchi Energy Sources Co ltd; Liaoning Technical University
Current assignee: Xinjiang Tianchi Energy Sources Co ltd; Liaoning Technical University
Priority date: 2019-03-18
Filing date: 2019-03-18
Publication date: 2020-05-05
Anticipated expiration: 2029-03-18

Abstract

The utility model provides a flexible press belt assembly and belt conveyor system relates to conveyer technical field. The flexible belt pressing assembly comprises an upper belt pressing device and a lower belt pressing device, wherein the upper belt pressing device and the lower belt pressing device are respectively used for being arranged on the upper side and the lower side of a return belt of the belt conveyor and are respectively matched with the return belt in a rolling mode, at least two upper belt pressing devices are arranged, and/or at least two lower belt pressing devices are arranged, and the upper belt pressing devices and the lower belt pressing devices are arranged in a staggered mode. The flexible belt pressing assembly can be matched with a belt conveyor for use, and the phenomena of suspension and large jumping amplitude of a return belt of the belt conveyor are reduced, so that the problem of deviation of the return belt caused by large vibration of a frame of the belt conveyor is effectively avoided, the service life of the return belt is effectively prolonged, and the production efficiency of the belt conveyor is effectively improved.

Description

Flexible press belt assembly and belt conveyor system

Technical Field

The disclosure relates to the technical field of conveyors, in particular to a flexible press belt assembly and a belt conveying system.

Background

The belt conveyor is the most widely used transport tool in the coal mining process at present, and the condition that the rubber belt is suspended and the jumping amplitude is large often appears in the process of transporting materials due to various reasons in the existing belt conveyor, so that the material scattering phenomenon is easy to occur on the materials such as coal, gangue and the like. The problem of hanging and jumping of the return segment adhesive tape is solved, the problem of hanging and large jumping amplitude of the adhesive tape is easily caused due to the fact that the gravity action of materials does not exist on the return segment adhesive tape, the problem of deviation of the adhesive tape can be caused due to jumping of the adhesive tape, and safe operation accidents can be caused when the deviation of the adhesive tape is serious.

Although some current belt conveyor sticky tape press devices have solved the sticky tape at vertical unsettled and the big problem of range of beating to a certain extent, because there is sliding friction between pinch roller and the sticky tape, and the sticky tape also can produce great impact to the pinch roller, causes the wearing and tearing aggravation of sticky tape, has reduced the life of sticky tape, has also increased conveying equipment's maintenance cost, and then has leaded to some current press devices's use economic nature lower.

SUMMERY OF THE UTILITY MODEL

The purpose of the disclosure includes providing a flexible belt pressing assembly, which can be used in cooperation with a belt conveyor, and reduces the phenomena of suspension and large jumping amplitude of a return belt of the belt conveyor, thereby effectively avoiding the problem of deviation of the return belt caused by large vibration of a frame of the belt conveyor, and further effectively improving the service life of the return belt and the production efficiency of the belt conveyor.

The purpose of the disclosure also includes providing a belt conveyor system, which adopts the flexible press belt assembly provided by the disclosure, so that the problem of deviation of the return belt caused by large vibration of the frame is not easy to occur, and the service life of the return belt and the production efficiency of the belt conveyor are high.

The technical problem to be solved by the present disclosure is realized by adopting the following technical scheme:

the flexible belt pressing assembly comprises an upper belt pressing device and a lower belt pressing device, wherein the upper belt pressing device and the lower belt pressing device are respectively used for being arranged on the upper side and the lower side of a return belt of a belt conveyor and are respectively matched with the return belt in a rolling mode, at least two upper belt pressing devices are arranged, and/or at least two lower belt pressing devices are arranged, and the upper belt pressing devices and the lower belt pressing devices are arranged in a staggered mode.

Further, the upper pressing belt device comprises an upper roller group and first fixing structures arranged at two ends of the upper roller group, the first fixing structures are used for being fixed with the belt conveyor or fixed on an operation surface, and the upper roller group is used for being attached to the top of the return rubber belt and matched with the top of the return rubber belt in a rolling mode.

Further, the first fixing structure comprises a first fixing frame, a first supporting frame and a first buffering member, the upper roller set is connected with the first supporting frame, the first supporting frame is connected with the first fixing frame through the first buffering member, and the first buffering member is vertically arranged.

Further, first mount includes fixed block and damping buffer, the fixed block has first stationary plane and the second stationary plane that each other is the contained angle, go up the tip of roller group with first stationary plane is connected, the damping buffer vertical set up in on the second stationary plane, first support frame includes that interconnect is the fixed plate and the locating plate of contained angle, the damping buffer with locating plate sliding fit, first bolster set up in the second stationary plane reaches between the locating plate, the damping buffer with the fixed plate interval sets up, the fixed plate be used for with belt conveyor is fixed.

Furthermore, the upper roller sets are arranged into a plurality of groups, and the plurality of groups of upper roller sets are arranged side by side at intervals and are respectively connected with the two first fixed structures.

Further, the lower belt pressing device comprises a lower roller set and second fixing structures arranged at two ends of the lower roller set, the second fixing structures are used for being fixed with the belt conveyor or fixed on an operation surface, and the lower roller set is used for being attached to the bottom of the return belt and matched with the bottom of the return belt in a rolling mode.

Further, the second fixed knot constructs including second mount, second support frame, second bolster and short stand, lower roll set with the second support frame is connected, the second support frame passes through the second bolster with the second mount is connected, two the equal vertical setting of second bolster, the second mount with short stand is connected, short stand is used for being fixed in the operation face.

Further, the lower roller sets are arranged into a plurality of groups, and the lower roller sets are arranged side by side at intervals and are respectively connected with the two second fixing structures.

The belt conveying system comprises a belt conveyor and the flexible press belt assembly.

The flexible belt pressing assembly comprises an upper belt pressing device and a lower belt pressing device, the upper belt pressing device and the lower belt pressing device are respectively used for being arranged on the upper side and the lower side of a return rubber belt of the belt conveyor and are respectively matched with the return rubber belt in a rolling mode, at least two upper belt pressing devices are arranged, and/or at least two lower belt pressing devices are arranged, and the upper belt pressing devices and the lower belt pressing devices are arranged in a staggered mode.

The belt conveyor comprises a return frame and a return rubber belt, and the return rubber belt is matched with the return frame in a rolling manner; the upper press belt device is arranged on the return frame.

Further, the return frame comprises two upper brackets, a plurality of return carrier rollers and a plurality of long upright posts; two ends of each return idler are respectively fixed with one long upright post, and each upper support is respectively fixed with a plurality of long upright posts arranged on the same side; and two ends of the upper belt pressing device are used for being respectively installed on the two corresponding long upright posts after one of the return rollers is detached.

The beneficial effects of the embodiment of the disclosure are:

the flexible press belt assembly provided by the embodiment of the disclosure can be used for solving the problems of suspension and large jumping amplitude in the running process of a return rubber belt of a belt conveyor, the upper belt pressing device and the lower belt pressing device are respectively arranged at the upper side and the lower side of a return rubber belt of the belt conveyor, the return rubber belt is limited from two directions respectively, the stability of the operation structure of the return rubber belt is adjusted, and at least two upper belt pressing devices are arranged, or the lower belt pressing devices are at least two, or the upper belt pressing devices and the lower belt pressing devices are at least two, and the upper belt pressing devices and the lower belt pressing devices are arranged in a staggered mode, so that the running stability of the return belt can be further ensured, the problem of deviation of the return belt caused by large vibration of the frame of the belt conveyor can be effectively avoided, and the service life of the return belt and the production efficiency of the belt conveyor are effectively prolonged.

The belt conveyor system provided by the embodiment of the disclosure is not easy to deviate due to the large vibration of the frame because of the flexible belt pressing assembly, and the service life of the return belt and the production efficiency of the belt conveyor are high.

Drawings

In order to more clearly explain the technical solutions of the embodiments of the present disclosure, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate certain embodiments of the present disclosure, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to these drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a belt conveyor system according to an embodiment of the present disclosure.

Fig. 2 is a schematic structural diagram of a belt conveyor of a belt conveying system according to an embodiment of the disclosure.

Fig. 3 is a schematic structural diagram of an upper belt pressing device of a flexible belt assembly according to an embodiment of the present disclosure.

Fig. 4 is a schematic structural diagram of a first fixing structure of a flexible press belt assembly according to an embodiment of the present disclosure.

Fig. 5 is a schematic structural diagram of a lower belt pressing device of a flexible belt pressing assembly according to an embodiment of the present disclosure.

Fig. 6 is a schematic structural diagram of a second fixing structure of a flexible press belt assembly according to an embodiment of the present disclosure.

Icon: 300-a belt conveyor system; 200-belt conveyor; 210-carrier rollers; 220-carrier tape; 230-a backhaul rack; 231-upper support; 232-return idler; 233-long upright column; 240-pass adhesive tape; 100-a flexible press belt assembly; 110-a press belt device; 112-upper roller group; 1121-carrier roller shaft; 1122-carrier roller; 113-a first fixation structure; 1131 — a first mount; 101-fixing block; 1011-a first fixing face; 1012-second fixing surface; 102-a damping buffer; 1132 — a first support; 103-a fixed plate; 104-a positioning plate; 1133 — first cushion; 120-lower belt pressing device; 121-lower roller set; 122-a second fixation structure; 1221-a second mount; 1222-a second support; 1223-a second buffer; 1224-short column.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are some, but not all embodiments of the present disclosure. The components of the embodiments of the present disclosure, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present disclosure, presented in the figures, is not intended to limit the scope of the claimed disclosure, but is merely representative of selected embodiments of the disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present disclosure, it should be noted that the terms "upper" and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally laid out when the disclosed products are used, and are only used for convenience in describing and simplifying the present disclosure, but do not indicate or imply that the referred devices or elements must have specific orientations, be constructed in specific orientations and operations, and thus, should not be construed as limiting the present disclosure.

Furthermore, the terms "first," "second," "third," and "fourth," etc. are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present disclosure, it should also be noted that, unless otherwise specified or limited more specifically, the terms "disposed" and "connected" are to be construed broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present disclosure can be understood in specific instances by those of ordinary skill in the art.

In the following, an embodiment of the present disclosure will be described in detail with reference to the drawings, and features in the following embodiments may be combined with each other without conflict.

Fig. 1 is a schematic structural diagram of a belt conveyor system 300 according to this embodiment. Referring to fig. 1, the present embodiment provides a belt conveyor system 300, which includes a belt conveyor 200 and a flexible press belt assembly 100.

Wherein the belt conveyor 200 is used for transporting material. Fig. 2 is a schematic structural diagram of a belt conveyor 200 of a belt conveyor system 300 according to this embodiment. Referring to fig. 2, in the present embodiment, the belt conveyor 200 includes a carrier roller 210, a carrier tape 220, a return frame 230, and a return tape 240.

Wherein, the carrier roller 210 is installed on the return frame 230, and the carrier tape 220 is in rolling fit with the carrier roller 210 to carry and transport the material. The return tape 240 is in rolling engagement with the return frame 230 for idle return travel.

In this embodiment, the flexible belt pressing assembly 100 is used for limiting the return belt 240, and preventing the return belt 240 from suspending and jumping greatly.

In this embodiment, the return frame 230 includes two upper brackets 231, a plurality of return rollers 232, and a plurality of long columns 233. Both ends of each return idler 232 are fixed with a long upright 233 respectively, and each upper bracket 231 is fixed with a plurality of long uprights 233 arranged on the same side respectively. It is understood that the return belt 240 is capable of running under the supporting and driving action of the plurality of return idlers 232.

Alternatively, in this embodiment, the carrying idler 210 is provided in plurality, and the plurality of carrying idlers 210 are respectively mounted on the two upper brackets 231, it can be understood that the plurality of carrying idlers 210 can support and drive the carrying adhesive tape 220.

Referring to fig. 1, in the present embodiment, the flexible belt pressing assembly 100 includes an upper belt pressing device 110 and a lower belt pressing device 120, and the upper belt pressing device 110 and the lower belt pressing device 120 are respectively configured to be disposed on an upper side and a lower side of a return belt 240 of the belt conveyor 200, and respectively cooperate with the return belt 240 in a rolling manner to limit the operation of the return belt 240.

In this embodiment, the upper belt pressing device 110 is provided as one, the lower belt pressing device 120 is provided as two, and the upper belt pressing device 110 and the lower belt pressing device 120 are arranged alternately.

That is, two lower belt pressing devices 120 are respectively disposed at two sides of the upper belt pressing device 110, and limit the position of the return belt 240 from three positions, wherein the two lower belt pressing devices 120 are symmetrically disposed at two sides of the upper belt pressing device 110. This configuration enables the flexible press belt assembly 100 to apply a uniform force to the return adhesive tape 240, thereby ensuring the stability of the operation of the return adhesive tape 240.

It is understood that in other alternative embodiments, the lower belt pressing device 120 may be provided as one, the upper belt pressing device 110 may be provided as two, and the upper belt pressing device 110 and the lower belt pressing device 120 may be staggered.

Alternatively, the upper belt pressing device 110 and the lower belt pressing device 120 may be provided in plurality and at equal intervals to ensure the stability of the operation of the return adhesive tape 240.

Fig. 3 is a schematic structural diagram of an upper belt pressing device 110 of the flexible belt assembly 100 according to this embodiment. Referring to fig. 3, in the present embodiment, the upper belt pressing device 110 includes an upper roller set 112 and first fixing structures 113 disposed at two ends of the upper roller set 112. In this embodiment, the upper roller set 112 is adapted to fit the top of the return tape 240 and roll, and the two first fixing structures 113 are respectively adapted to be fixed to two oppositely disposed long pillars 233 of the belt conveyor 200.

Fig. 4 is a schematic structural diagram of the first fixing structure 113 of the flexible press belt assembly 100 according to this embodiment. Referring to fig. 4, in the present embodiment, the first fixing structure 113 includes a first fixing frame 1131, a first supporting frame 1132 and a first buffering member 1133, the upper roller set 112 is connected to the first supporting frame 1132, the first supporting frame 1132 is connected to the first fixing frame 1131 through the first buffering member 1133, and both the first buffering members 1133 are vertically disposed.

It can be understood that the upper roller set 112 can be always in a flexible contact state with the return adhesive tape 240 through the first buffer member 1133, and flexible rolling friction exists between the upper roller set 112 and the return adhesive tape 240, so that the degree of adhesive tape wear can be effectively reduced.

Alternatively, the first dampener 1133 can be a spring.

In this embodiment, the first fixing frame 1131 includes a fixing block 101 and a damping buffer 102, the fixing block 101 has a first fixing surface 1011 and a second fixing surface 1012 forming an included angle with each other, an end of the upper roller set 112 is connected to the first fixing surface 1011, and the damping buffer 102 is vertically disposed on the second fixing surface 1012.

The first support 1132 includes the fixed plate 103 and the positioning plate 104 connected to each other to form an included angle, the damping buffer 102 is in sliding fit with the positioning plate 104, the first buffer 1133 is disposed between the second fixing surface 1012 and the positioning plate 104, the damping buffer 102 and the fixed plate 103 are disposed at an interval, and the fixed plate 103 is used for fixing with the long column 233 of the belt conveyor 200.

It will be appreciated that this construction ensures stability in the up and down operation of the upper roller set 112. Also, it can be understood that the first damper 1133 and the damping damper 102 together form a spring-damping system to prevent the return tape 240 from resonating with the return frame 230.

It should be noted that this structure utilizes the return frame 230 to simplify the belt conveyor system 300, and in other alternative embodiments, the fixing plate 103 may be configured as a column structure, so that the whole upper belt pressing device 110 is fixed to the operation surface such as the ground, and does not need to be fixed to the long column 233.

Moreover, it can be understood that the upper belt device 110 and the long upright 233 can ensure the structural stability of the belt conveyor system 300.

Optionally, in this embodiment, the upper roller sets 112 are arranged in multiple groups, and the multiple groups of upper roller sets 112 are arranged side by side at intervals and are respectively connected to the two first fixing structures 113. It will be appreciated that this configuration can enhance the stability of the return tape 240 configuration.

It should be noted that, since the return idler 232 is V-shaped, so that the return tape 240 is also V-shaped, in order to conform to the shape of the return tape 240, in this embodiment, each upper roller set 112 may include a V-shaped idler shaft 1121 and two idler rollers 1122 disposed on the idler shaft 1121. The roller shaft 1121 may be a rigid shaft, and the outer ring of the roller 1122 is made of a flexible wear-resistant material.

Fig. 5 is a schematic structural diagram of the lower belt pressing device 120 of the flexible belt pressing assembly 100 according to this embodiment. Referring to fig. 5, in the present embodiment, the lower roller set 121 is adapted to fit the bottom of the returning adhesive tape 240 and roll. The lower belt pressing device 120 includes a lower roller set 121 and second fixing structures 122 provided at both ends of the lower roller set 121, and the second fixing structures 122 are used for fixing to an operation surface such as a floor surface.

Fig. 6 is a schematic structural diagram of the second fixing structure 122 of the flexible press belt assembly 100 according to the present embodiment. Referring to fig. 6, in the present embodiment, the second fixing structure 122 includes a second fixing frame 1221, a second supporting frame 1222, a second cushion 1223, and a short pillar 1224.

The lower roller set 121 is connected to a second support frame 1222, the second support frame 1222 is connected to a second fixing frame 1221 through a second buffering member 1223, the two second buffering members 1223 are both vertically arranged, the second fixing frame 1221 is connected to a short column 1224, and the short column 1224 is used for being fixed to an operation surface.

In this embodiment, the second fixing frame 1221 has a structure substantially the same as that of the first fixing frame 1131, and also includes a fixed block 101 and a damping bumper 102, wherein the damping bumper 102 is disposed on the lower side of the fixed block 101. The fixing block 101 has a first fixing surface 1011 and a second fixing surface 1012 forming an included angle with each other, an end portion of the lower roller set 121 is connected to the first fixing surface 1011, and the damping bumper 102 is vertically disposed on the second fixing surface 1012.

The second support 1222 is also substantially identical in structure to the first support 1132. The second support frame 1222 includes a fixing plate 103 and a positioning plate 104 connected to each other to form an included angle, the damping buffer 102 is slidably engaged with the positioning plate 104, the second cushion member 1223 is disposed between the second fixing surface 1012 and the positioning plate 104, the damping buffer 102 and the fixing plate 103 are disposed at an interval, and the fixing plate 103 is used for fixing with the long column 233 of the belt conveyor 200.

It will also be appreciated that this configuration ensures stability in the up-and-down operation of the lower roller set 121. Also, it can be understood that the second cushion 1223 and the damping cushion 102 together form a spring-damping system to prevent the return tape 240 and the return frame 230 from resonating.

Alternatively, in this embodiment, the lower roller sets 121 are provided in a plurality of sets, and the plurality of sets of lower roller sets 121 are spaced side by side and are respectively connected to the two second fixing structures 122.

It should be noted that the structure of the lower roller set 121 is the same as that of the upper roller set 112, and is not described herein again.

It should be appreciated that in alternative embodiments, the hold-down device 120 may be mounted to the long upright 233 without the short upright 1224, but directly via the second mount 1221. The lower belt pressing device 120 of this structure facilitates the adjustment of the position of the return belt 240.

With reference to fig. 1 and fig. 2, it can be understood that, in the belt conveyor system 300 provided in this embodiment, when the return belt 240 of the belt conveyor 200 is suspended and jumped widely during operation, the position of the return frame 230 with a large vibration amount is marked, the return idler 232 closer to the marked position is replaced when the next shutdown inspection is performed, the upper belt pressing device 110 of the flexible belt pressing assembly 100 is fixed to the long upright 233 by the first fixing plate 103, and then the two lower belt pressing devices 120 are symmetrically disposed on both sides of the upper belt pressing device 110. The upper belt pressing device 110 and the lower belt pressing device 120 are respectively disposed on the upper side and the lower side of the return belt 240 of the belt conveyor 200.

It can be understood that the flexible belt assembly 100 provided by this embodiment can be used to prevent the back-run adhesive tape 240 of the belt conveyor 200 from floating and jumping to a large extent during operation, the upper belt pressing device 110 and the lower belt pressing device 120 are respectively arranged at the upper side and the lower side of the return rubber belt 240 of the belt conveyor 200, so that the return rubber belt 240 is limited from two directions, the stability of the operation structure is adjusted, and at least two upper belt pressing devices 110 are arranged, or at least two lower belt pressing devices 120 are arranged, or at least two upper belt pressing devices 110 and at least two lower belt pressing devices 120 are arranged, and the upper belt pressing devices 110 and the lower belt pressing devices 120 are arranged in a staggered manner, so that the running stability of the return belt 240 can be further ensured, the problem of deviation of the return belt 240 caused by large frame vibration of a belt conveyor can be effectively avoided, thereby effectively prolonging the service life of the return rubber belt 240 and improving the production efficiency of the belt conveyor 200.

The belt conveyor system 300 provided by this embodiment is not prone to the deviation problem of the return belt 240 caused by the large vibration of the frame due to the flexible press belt assembly 100, and the service life of the return belt 240 and the production efficiency of the belt conveyor 200 are high.

The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.

Claims

1. A flexible belt pressing assembly is characterized by comprising an upper belt pressing device and a lower belt pressing device, wherein the upper belt pressing device and the lower belt pressing device are respectively arranged on the upper side and the lower side of a return rubber belt of a belt conveyor and are respectively matched with the return rubber belt in a rolling mode, at least two upper belt pressing devices are arranged, and/or at least two lower belt pressing devices are arranged, and the upper belt pressing devices and the lower belt pressing devices are arranged in a staggered mode.

2. The flexible belt assembly of claim 1, wherein the upper belt pressing device comprises an upper roller set and first fixing structures arranged at two ends of the upper roller set, the first fixing structures are used for being fixed with the belt conveyor or an operation surface, and the upper roller set is used for being attached to the top of the return adhesive tape and being in rolling fit with the top of the return adhesive tape.

3. The flexible push belt assembly of claim 2, wherein the first securing structure comprises a first securing frame, a first support frame, and a first cushioning member, the upper roller set being connected to the first support frame, the first support frame being connected to the first securing frame via the first cushioning member, both of the first cushioning members being vertically disposed.

4. The flexible push belt assembly of claim 3, wherein the first fixing frame comprises a fixing block and a damping buffer, the fixing block has a first fixing surface and a second fixing surface which are at an angle with each other, the end of the upper roller set is connected with the first fixing surface, the damping buffer is vertically disposed on the second fixing surface, the first supporting frame comprises a fixing plate and a positioning plate which are connected with each other at an angle, the damping buffer is in sliding fit with the positioning plate, the first buffer is disposed between the second fixing surface and the positioning plate, the damping buffer is spaced from the fixing plate, and the fixing plate is used for fixing with the belt conveyor.

5. The flexible push belt assembly of claim 2, wherein the upper roller sets are arranged in a plurality of groups, the plurality of groups of upper roller sets being spaced apart side by side and being connected to two of the first securing structures, respectively.

6. The flexible belt press assembly of claim 1, wherein the lower belt press assembly comprises a lower roller set and second fixing structures arranged at two ends of the lower roller set, the second fixing structures are used for being fixed with the belt conveyor or an operation surface, and the lower roller set is used for being attached to the bottom of the return belt and is in rolling fit with the bottom of the return belt.

7. The flexible press belt assembly of claim 6, wherein the second fixing structure comprises a second fixing frame, a second supporting frame, a second buffering member and a short column, the lower roller set is connected to the second supporting frame, the second supporting frame is connected to the second fixing frame through the second buffering member, both the second buffering members are vertically disposed, the second fixing frame is connected to the short column, and the short column is used for fixing to the operating surface.

8. The flexible press belt assembly of claim 6, wherein the lower roller sets are arranged in a plurality of groups, the plurality of groups being spaced apart side-by-side and being connected to two of the second securing structures, respectively.

9. A belt conveyor system comprising a belt conveyor and a flexible press belt assembly as claimed in any one of claims 1 to 8, the belt conveyor comprising a return frame and a return belt, the return belt being in rolling engagement with the return frame; the upper press belt device is arranged on the return frame.

10. The belt conveyor system according to claim 9, wherein the return frame comprises two upper brackets, a plurality of return idlers, and a plurality of elongate uprights; two ends of each return idler are respectively fixed with one long upright post, and each upper support is respectively fixed with a plurality of long upright posts arranged on the same side; and two ends of the upper belt pressing device are used for being respectively installed on the two corresponding long upright posts after one of the return rollers is detached.