Cloth discharging device

Abstract

The utility model belongs to the technical field of wet sludge treatment, and particularly relates to a material distributing and discharging device which comprises a filter pressing rack, a material conveying pipe, a material distributing and discharging travelling crane and a discharging hopper are arranged on the filter pressing rack, and the material distributing and discharging travelling crane comprises a travelling crane frame. An upper cloth roller, a lower cloth roller, an upper guide roller and a cloth discharging driving assembly are rotationally arranged on the travelling crane frame, upper filter cloth sequentially passes through the upper cloth roller, the upper guide roller and the cloth discharging driving assembly, lower filter cloth sequentially passes through the lower cloth roller and the cloth discharging driving assembly, a feeding opening is formed in the end of the conveying pipe, and a discharging opening is formed in the end of the conveying pipe. The feeding opening is formed above the lower filter cloth, the discharging hopper is arranged at the discharging end of the material distributing and discharging traveling crane, and the discharging hopper is arranged below the material distributing and discharging driving assembly. According to the utility model, the integration of material distribution and material unloading in the wet sludge filter pressing process is realized, the operation is convenient, and the working efficiency is high.

Description

Technical Field

[0001] The utility model relates to a material distributing and unloading device, belonging to the technical field of wet sludge treatment. Background Art

[0002] At present, the main method of disposing of wet sludge is incineration. However, the dehydration of wet sludge generally adopts belt dehydrator or screw dehydrator, which can only reduce the moisture content of wet sludge to 80%. This kind of sludge is a non-Newtonian fluid (paste). Sludge with such a high moisture content is not convenient for transportation. At the same time, during the incineration disposal process, a large amount of water in the sludge still absorbs a lot of heat, resulting in waste of resources and reducing the sludge processing capacity.

[0003] Therefore, it is necessary to reduce the moisture content of sludge to increase the sludge processing capacity of incineration plants. In recent years, steam drying or low-temperature drying processes have been widely used to reduce the moisture content of sludge to 35-40% before incineration. Although this method increases the sludge processing capacity, the investment and operating costs of sludge disposal are very high, which places a heavy economic burden on the government. If the moisture in wet sludge is removed by filter pressing, it can reduce costs compared to steam drying or low-temperature drying. However, the current filter pressing process does not have a distribution and unloading equipment for wet sludge. The material is only loaded through a simple feed pipe, which causes uneven distribution of wet sludge, affecting the filter pressing effect. After the filter pressing, the unloading requires the use of tools to completely clear the sludge, which seriously affects work efficiency. Utility Model Content

[0004] The utility model aims to solve the defects of the prior art and provides a material discharging device.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] The cloth unloading device comprises a filter press frame, the filter press frame is provided with a feeding pipe, a cloth unloading crane and a discharging hopper, the cloth unloading crane comprises a carriage, the carriage is movably mounted on the filter press frame, and an upper cloth winding roller, a lower cloth winding roller, an upper guide roller and a cloth unloading drive assembly are rotatably provided on the carriage, the upper cloth winding roller is used to release and retract the upper filter cloth, and the lower cloth winding roller is used to release and retract the lower filter cloth, the upper filter cloth passes through the upper cloth winding roller, the upper guide roller and the cloth unloading drive assembly in sequence, and the lower filter cloth passes through the lower cloth winding roller and the cloth unloading drive assembly in sequence. The end of the feeding pipe is provided with a feeding port, and the feeding port is arranged above the lower filter cloth, the discharging hopper is arranged at the discharging end of the cloth unloading crane, and the discharging hopper is arranged below the cloth unloading drive assembly.

[0007] The beneficial effects of the present invention are as follows: the present invention realizes the discharging of wet sludge and the unloading of dry sludge after filtration through the cloth unloading crane; when discharging, the upper filter cloth and the lower filter cloth are driven to move by the cloth unloading driving assembly; during the movement of the filter cloth, the reciprocating motion of the carriage on the filter press frame causes the filter cloth wrapped with wet sludge to be placed in a flat layer in the filter press mechanism, thereby ensuring uniform discharging; when unloading, the upper cloth winding roller and the lower cloth winding roller rotate in opposite directions to recycle the filter cloth and unload the dry sludge after filtration into the unloading hopper, thereby realizing the integration of discharging and unloading in the wet sludge filter press process, with convenient operation and high work efficiency.

[0008] On the basis of the above technical solution, the present invention can also make the following improvements:

[0009] Furthermore, the cloth unloading drive assembly includes an upper pressure roller and a chain conveyor. The upper pressure roller is rotatably mounted on the cloth unloading crane, and the chain conveyor is mounted on the crane frame. The upper pressure roller is arranged above one end of the chain conveyor, and the loading port and the unloading hopper are respectively arranged above and below the other end of the chain conveyor.

[0010] The beneficial effect of adopting the above-mentioned further technical solution is: when loading, the wet sludge falls directly from the loading port onto the lower filter cloth on the chain conveyor, and the upper filter cloth and the lower filter cloth are pressed together by the upper pressure roller in cooperation with the chain of the chain conveyor, driving the upper filter cloth and the lower filter cloth to move wrapped with the sludge; when unloading, the upper cloth roller and the lower cloth roller rotate in opposite directions, and cooperate with the chain conveyor and the upper pressure roller to drive the upper filter cloth and the lower filter cloth to move wrapped with the dry sludge sheets after filtration in opposite directions, and the dry sludge moves on the lower filter cloth to the end of the chain conveyor, and falls from the lower filter cloth to the unloading hopper below the chain conveyor, and is then transported to the next process for processing by transportation equipment.

[0011] Furthermore, the upper pressure roller is installed on the cloth unloading crane through a pressure roller adjustment mechanism, and the pressure roller adjustment mechanism adjusts the distance between the upper pressure roller and the chain conveyor.

[0012] The beneficial effect of adopting the above-mentioned further technical solution is: the installation height of the upper pressure roller is adjusted through the pressure roller adjustment mechanism, so that the upper pressure roller meets the use requirements of the two working states of cloth and unloading. When cloth is being laid, the upper pressure roller is adjusted downward to press the two sides of the filter cloth and assist the chain conveyor to drive the filter cloth to move. When unloading, the upper pressure roller is adjusted upward to avoid affecting the recovery of the filter cloth.

[0013] Furthermore, both ends of the upper pressing roller are edge pressing sections, and the middle portion is an idle section, and the diameter of the edge pressing section is larger than the diameter of the idle section.

[0014] The beneficial effect of adopting the above-mentioned further technical solution is that only the edge pressing section of the upper pressure roller presses the filter cloth and cooperates with the chain conveyor to drive the filter cloth to move. The idling section in the middle of the upper pressure roller will not press the filter cloth, so that the upper pressure roller will not squeeze the wet sludge in the middle of the filter cloth during the process of driving the filter cloth to move, thereby avoiding the wet sludge being squeezed out from both sides of the filter cloth in advance under the action of squeezing before entering the filter press mechanism.

[0015] Furthermore, the cloth unloading crane is further provided with a material guide baffle, and two material guide baffles are symmetrically provided. The two material guide baffles are arranged above the lower filter cloth and behind the feeding port.

[0016] The beneficial effect of adopting the above-mentioned further technical solution is that: since the wet sludge has a high moisture content and is fluid, the wet sludge material released from the feeding port is diverted and limited by the material guide baffle. After the wet sludge coming out of the feeding port falls onto the lower filter cloth, it will not flow out from both sides of the lower filter cloth under the action of the guide baffle.

[0017] Furthermore, the length of the idling section is greater than or equal to the distance between the two material guide baffles.

[0018] The beneficial effect of adopting the above further technical solution is: ensuring that the length of the idling section is greater than or equal to the width of the wet sludge on the lower filter cloth, and preventing the edge section of the upper pressing roller from squeezing the wet sludge.

[0019] Furthermore, the material discharging crane is provided with a mounting gantry, and the material guide baffle is mounted on the mounting gantry via a first lifting mechanism.

[0020] The beneficial effect of adopting the above-mentioned further technical solution is: when distributing the material, the first lifting mechanism first drives the material guide baffle to descend, opens the feed valve of the feed pipe, and the wet sludge continues to flow out from the feed port and falls onto the lower filter cloth; after the material distribution is completed, the feed valve is closed, and the first lifting mechanism drives the material guide baffle to rise, which can better prevent the sludge from falling and avoid the material guide baffle from affecting the unloading.

[0021] Furthermore, a spreading roller is rotatably provided on the carriage frame, and the spreading roller is installed on the material discharging carriage through a second lifting mechanism, and the spreading roller is provided with a forward spiral and a reverse spiral.

[0022] The beneficial effect of adopting the above further technical solution is: the filter cloth after filtration is flattened by setting a spreading roller, and the spreading roller is provided with spirals with opposite directions. When the spreading roller rotates, the spiral contacts the filter cloth, thereby driving the filter cloth to spread to both sides.

[0023] Furthermore, an upper cleaning roller and a lower cleaning roller are provided on the traveling frame. Both the upper cleaning roller and the lower cleaning roller are provided with cleaning brushes. The cleaning roller and the lower cleaning roller are used to clean the sludge remaining on the upper filter cloth and the lower filter cloth respectively.

[0024] Furthermore, it also includes a correction device, which includes a sensor and a servo controller. The servo controller is connected to the sensor signal, and the servo controller controls and adjusts the positions of the upper cloth winding roller and the lower cloth winding roller.

[0025] The beneficial effect of adopting the above-mentioned further technical solution is: the single-side edge position of the filter cloth is detected by the sensor, and the signal is then transmitted to the servo controller. The servo controller drives the actuator to adjust the position of the upper cloth winding roller and the lower cloth winding roller according to the detected signal, and finally stabilizes the upper cloth winding roller and the lower cloth winding roller within the set position range, thereby realizing automatic deviation correction of the filter cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0027] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from another angle;

[0028] Figure 3 This is the main view of the utility model;

[0029] Figure 4 This is a reference diagram of the use state of the utility model;

[0030] Figure 5 for Figure 4 An enlarged view of point A, wherein part of the upper filter cloth and the lower filter cloth are omitted;

[0031] Figure 6 It is a schematic diagram of the three-dimensional structure of the upper pressing roller.

[0032] The accompanying drawings are marked as follows: 100, filter press frame; 101, traveling frame; 102, feed pipe; 103, discharge hopper; 104, frame guide rail; 105, roller; 106, upper cloth winding roller; 107, lower cloth winding roller; 108, upper guide roller; 109, upper steering roller; 110, lower guide roller; 112, upper filter cloth; 113, lower filter cloth; 114, feeding port; 115, upper pressing roller; 1151, edge pressing section; 1152, idling section; 116, chain conveyor; 117, pressing roller adjustment mechanism; 118, material guide baffle; 119, mounting door frame; 120, first lifting mechanism; 121, second lifting mechanism; 122, upper cleaning roller; 123, lower cleaning roller; 124, spreading roller. DETAILED DESCRIPTION

[0033] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0034] It should be noted that, in the utility model, the front and back mentioned are based on the forward direction of the material when the material is being laid. The utility model believes that the material moves from the front to the back when the material is being laid.

[0035] See also Figures 1-6 A material distributing and unloading device includes a filter press frame 100, on which a material conveying pipe 102, a material distributing and unloading crane and a discharging hopper 103 are provided. The material distributing and unloading crane includes a crane frame 101, which is movably mounted on the filter press frame 100. Specifically, the filter press frame 100 is provided with a frame guide rail 104, and a roller 105 is provided at the bottom of the crane frame 101. The crane frame 101 is movably mounted on the frame guide rail 104. The movement of the crane frame 101 is driven by a crane power mechanism. In the present utility model, the crane power mechanism is not limited. Specifically, in this embodiment, the crane power mechanism is a driving motor or a driving cylinder.

[0036] The traveling frame 101 is provided with an upper cloth roller 106, a lower cloth roller 107, an upper guide roller 108, an upper steering roller 109, a lower guide roller 110 and a cloth unloading drive assembly. The upper cloth roller 106 is used to release and retract the upper filter cloth 112, and the lower cloth roller 107 is used to release and retract the lower filter cloth 113. The upper filter cloth 112 passes through the upper cloth roller 106, the upper guide roller 108, the upper steering roller 109 and the cloth unloading drive assembly in sequence. The lower filter cloth 113 passes through the lower cloth winding roller 107, the lower guide roller 110 and the cloth unloading drive assembly in sequence. The end of the conveying pipe 102 is provided with a loading port 114, and the loading port 114 is arranged above the lower filter cloth 113. The discharge hopper 103 is arranged at the unloading end of the cloth unloading crane, and the discharge hopper 103 is arranged below the cloth unloading drive assembly. The opening width of the discharge hopper 103 is greater than or equal to the width of the lower filter cloth 113.

[0037] The cloth discharging drive assembly includes an upper pressure roller 115 and a chain conveyor 116. The upper pressure roller 115 is rotatably mounted on the cloth discharging crane, and the chain conveyor 116 is mounted on the crane frame 101. The upper pressure roller 115 is located above one end of the chain conveyor 116. The upper pressure roller 115 cooperates with the chain of the chain conveyor 116 to compress the upper filter cloth 112 and the lower filter cloth 113, and drives the upper filter cloth 112 and the lower filter cloth 113 to move, thereby distributing and discharging the cloth. After the lower filter cloth 113 emerges from the lower cloth winding roller 107, it passes around the lower guide roller 110 and enters the chain conveyor 116. The lower filter cloth 113 is transported by the chain conveyor 116, providing better support for the wet sludge on the lower filter cloth 113. The loading port 114 and the discharge hopper 103 are respectively located above and below the other end of the chain conveyor 116.

[0038] The upper pressure roller 115 is installed on the cloth unloading crane through a pressure roller adjustment mechanism 117. The pressure roller adjustment mechanism 117 adjusts the distance between the upper pressure roller 115 and the chain conveyor 116. Specifically, in this embodiment, the pressure roller adjustment mechanism 117 can be a cylinder, and both ends of the upper pressure roller 115 are installed through the cylinder.

[0039] See also Figure 6 The two ends of the upper pressing roller 115 are edge pressing sections 1151 and the middle part is an idle section 1152 . The diameter of the edge pressing section 1151 is larger than the diameter of the idle section 1152 .

[0040] The cloth unloading crane is also provided with a material guide baffle 118. Specifically, the cloth unloading crane is provided with a mounting door frame 119. The material guide baffle 118 is installed on the mounting door frame 119 through a first lifting mechanism 120. The present utility model does not limit the first lifting mechanism 120. Specifically, in this embodiment, the first lifting mechanism 120 is a cylinder; the material guide baffles 118 are symmetrically provided with two, and the two material guide baffles 118 are arranged above the lower filter cloth 113 and behind the feeding port 114. The wet sludge flowing out of the feeding port 114 and falling onto the lower filter cloth 113 is transported in the space between the two material guide baffles 118 and is not easy to fall from both sides of the lower filter cloth 113.

[0041] The length of the idling section 1152 of the upper pressing roller 115 is greater than or equal to the distance between the two material guide baffles 118 . Specifically, in this embodiment, the length of the idling section 1152 of the upper pressing roller 115 is equal to the distance between the two material guide baffles 118 .

[0042] A spreading roller 124 is also rotatably provided on the carriage frame 101, and the spreading roller 124 is installed on the cloth unloading carriage through a second lifting mechanism 121. The spreading roller 124 is provided with a forward spiral and a reverse spiral, and the forward spiral and the reverse spiral are both turned toward the end of the spreading roller 124, so that when the spreading roller 124 rotates, the spiral contacts the filter cloth, driving the filter cloth to spread toward the two ends of the spreading roller 124.

[0043] The traveling frame 101 is also provided with an upper cleaning roller 122 and a lower cleaning roller 123. The upper cleaning roller 122 and the lower cleaning roller 123 are both provided with cleaning brushes. The upper cleaning roller 122 and the lower cleaning roller 123 are respectively used to clean the sludge remaining on the upper filter cloth 112 and the lower filter cloth 113. Specifically, the upper cleaning roller 122 is arranged between the upper guide roller 108 and the upper steering roller 109, and the lower cleaning roller 123 is arranged between the lower guide roller 110 and the chain conveyor 116, and the setting height of the lower cleaning roller 123 is above the discharge hopper 103.

[0044] It also includes a deviation correction device, which includes a sensor and a servo controller. The servo controller is connected to the sensor signal, and the servo controller controls and adjusts the positions of the upper cloth winding roller 106 and the lower cloth winding roller 107. Specifically, the servo controller drives the actuators of the upper cloth winding roller 106 and the lower cloth winding roller 107 to adjust and move from the original center position to the same direction of the side where the filter cloth deviates, so that the filter cloth can be stably wound within the set range of the upper cloth winding roller 106 or the lower cloth winding roller 107 until the filter cloth deviation signal of the sensor disappears. The servo controller will quickly drive the actuators of the upper cloth winding roller 106 and the lower cloth winding roller 107 from the adjusted position back to the original center position, thereby realizing automatic deviation correction during the filter cloth winding process; in this embodiment In this example, the actuator can be an electric cylinder, and the upper cloth roller 106 and the lower cloth roller 107 are installed on the traveling frame 101 through a mounting bracket and an adjustment guide rail. The electric cylinder is transmission-connected to the mounting bracket. Under the signal instruction of the servo controller, the electric cylinder drives the mounting bracket to move on the adjustment guide rail to adjust the position of the upper cloth roller 106 and the lower cloth roller 107, so that the filter cloth can be stably wound on the upper cloth roller 106 and the lower cloth roller 107, thereby realizing automatic deviation correction of the filter cloth.

[0045] The feed port 114 is configured as a duckbill type, and a feed valve is provided on the feed pipe 102 .

[0046] The process of placing and unloading the material in the utility model is as follows:

[0047] When the cloth is being distributed, the lower filter cloth 113 passes through the lower guide roller 110 and the chain conveyor 116 from the lower cloth winding roller 107 to the upper pressing roller 115 in sequence. The wet sludge is transported through the feeding pipe 102 and flows out from the feeding port 114 and falls onto the lower filter cloth 113. The wet sludge is transported on the lower filter cloth 113. The first lifting mechanism 120 drives the guide baffle 118 to descend, guiding and limiting the wet sludge on the lower filter cloth 113 to prevent the wet sludge from falling. The upper filter cloth 112 passes through the upper guide roller 108 and the upper steering roller 109 to the chain conveyor 116 in sequence. 6 and the upper pressing roller 115, the upper filter cloth 112 and the lower filter cloth 113 are wrapped with the wet sludge and move under the action of the upper pressing roller 115, and fall onto the filter press device. At the same time, the driving power mechanism drives the driving frame 101 to reciprocate on the frame guide rail 104, thereby driving the upper filter cloth 112 and the lower filter cloth 113 to wrap the wet sludge in the filter press device in a stacked state. The cloth is even and the cloth efficiency is high. When the filter press device is filtering, the filtration effect is good. When spreading, the second lifting mechanism 121 drives the spreading roller 124 to rise to prevent the spreading roller 124 from affecting the movement of the filter cloth.

[0048] During unloading, the upper cloth winding roller 106 and the lower cloth winding roller 107 on the cloth unloading crane move in opposite directions to drag the upper filter cloth 112 and the lower filter cloth 113 in the filter press device out. After the upper filter cloth 112 and the lower filter cloth 113 move in opposite directions and separate, the dehydrated dry sludge sheet is on the lower filter cloth 113. At this time, the first lifting mechanism 120 drives the guide baffle 118 to rise to prevent the guide baffle 118 from affecting the movement of the dry sludge sheet. The dry sludge sheet falls into the unloading hopper 103 after passing through the chain conveyor 116 and is transported to the yard or other process equipment through the screw conveying equipment. During the unloading process, the second lifting mechanism 121 drives the spreading roller 124 to descend. The forward and reverse spirals on the spreading roller 124 assist in spreading the filter cloth to prevent wrinkles on the filter cloth from affecting the next cloth. During the unloading process, the upper cleaning roller 122 and the lower cleaning roller 123 sweep off the dry sludge remaining on the filter cloth.

[0049] See also Figure 4-Figure 5 The cloth discharging device of the present invention can be provided with two groups on the same set of filter press device. One group of cloth discharging device performs filter pressing while the other group of cloth discharging device performs cloth discharging. The cloth discharging device after the filter pressing is completed is unloading while the cloth discharging device after the cloth discharging is completed is performing filter pressing. The two groups of cloth discharging devices are operated in turn, which can greatly save the operation time.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A material discharging device, characterized in that: The invention comprises a filter press frame (100), wherein the filter press frame (100) is provided with a material conveying pipe (102), a cloth unloading crane and a discharge hopper (103), wherein the cloth unloading crane comprises a crane frame (101), wherein the crane frame (101) is movably mounted on the filter press frame (100), wherein an upper cloth rolling roller (106), a lower cloth rolling roller (107), an upper guide roller (108) and a cloth unloading drive assembly are rotatably provided on the crane frame (101), wherein the upper cloth rolling roller (106) is used to release and retract an upper filter cloth (112), and the lower cloth rolling roller (107) is used to To release and retract the lower filter cloth (113), the upper filter cloth (112) passes through the upper cloth winding roller (106), the upper guide roller (108) and the cloth unloading drive assembly in sequence, and the lower filter cloth (113) passes through the lower cloth winding roller (107) and the cloth unloading drive assembly in sequence. The end of the conveying pipe (102) is provided with a feeding port (114), and the feeding port (114) is arranged above the lower filter cloth (113). The discharge hopper (103) is arranged at the discharge end of the cloth unloading crane, and the discharge hopper (103) is arranged below the cloth unloading drive assembly.

2. The material discharging device according to claim 1, characterized in that: The cloth unloading drive assembly includes an upper pressure roller (115) and a chain plate machine (116), wherein the upper pressure roller (115) is rotatably mounted on the cloth unloading crane, and the chain plate machine (116) is mounted on the crane frame (101). The upper pressure roller (115) is arranged above one end of the chain plate machine (116), and the feeding port (114) and the discharge hopper (103) are respectively arranged above and below the other end of the chain plate machine (116).

3. The material discharging device according to claim 2, characterized in that: The upper pressing roller (115) is installed on the cloth unloading crane via a pressing roller adjusting mechanism (117), and the pressing roller adjusting mechanism (117) adjusts the distance between the upper pressing roller (115) and the chain conveyor (116).

4. The material discharging device according to claim 3, characterized in that: The two ends of the upper pressing roller (115) are edge pressing sections (1151), and the middle portion is an idle section (1152). The diameter of the edge pressing section (1151) is larger than the diameter of the idle section (1152).

5. The material discharging device according to claim 4, characterized in that: The cloth unloading crane is also provided with a material guide baffle (118), and two material guide baffles (118) are symmetrically provided. The two material guide baffles (118) are arranged above the lower filter cloth (113) and behind the loading port (114).

6. The material discharging device according to claim 5, characterized in that: The length of the idle section (1152) is greater than or equal to the distance between the two material guide baffles (118).

7. The material discharging device according to claim 6, characterized in that: The material discharging crane is provided with a mounting door frame (119), and the material guide baffle (118) is mounted on the mounting door frame (119) via a first lifting mechanism (120).

8. The material discharging device according to claim 7, characterized in that: A spreading roller (124) is also rotatably provided on the carriage frame (101). The spreading roller (124) is installed on the material discharging carriage via a second lifting mechanism (121). The spreading roller (124) is provided with a forward spiral and a reverse spiral.

9. The material discharging device according to claim 8, characterized in that: The traveling frame (101) is further provided with an upper cleaning roller (122) and a lower cleaning roller (123), both of which are provided with cleaning brushes. The upper cleaning roller (122) and the lower cleaning roller (123) are used to clean the sludge remaining on the upper filter cloth (112) and the lower filter cloth (113), respectively.

10. The material discharging device according to claim 9, characterized in that: It also includes a deviation correction device, which includes a sensor and a servo controller. The servo controller is connected to the sensor signal, and the servo controller controls and adjusts the positions of the upper cloth winding roller (106) and the lower cloth winding roller (107).

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