Wet sludge filter pressing equipment

Abstract

The utility model belongs to the technical field of wet sludge treatment, and particularly relates to wet sludge filter pressing equipment which comprises a filter pressing rack, the filter pressing rack is provided with a material conveying pipe, two material distributing and discharging travelling cranes, a filter pressing device and a discharging hopper, the two material distributing and discharging travelling cranes are respectively arranged on two sides of the filter pressing device, and the discharging hopper is arranged on the filter pressing rack. The material distributing and discharging travelling cranes are movably mounted on the filter pressing rack, the filter pressing device comprises a filter pressing power mechanism and filter pressing boxes, the filter pressing power mechanism is arranged on the filter pressing rack and provides filter pressing power for the filter pressing boxes, the two filter pressing boxes correspond to the material distributing and discharging travelling cranes, and the filter pressing power mechanism is arranged on the filter pressing rack and provides filter pressing power for the filter pressing boxes. And the two filter pressing boxes are movably arranged on the filter pressing rack. According to the utility model, a set of filter-pressing power mechanism is adopted to complete the dewatering and filter-pressing treatment of wet sludge in two groups of filter-pressing boxes, so that the efficiency is improved, and the equipment structure is simplified.

Description

Technical Field

[0001] The utility model relates to wet sludge filter pressing equipment, belonging to the technical field of wet sludge treatment. Background Art

[0002] At present, the main method of disposing wet sludge is incineration. However, since the dehydration treatment of wet sludge before incineration generally adopts a belt dehydrator or a screw dehydrator, the moisture content of the wet sludge can only be reduced to 80%. This kind of sludge is a non-Newtonian fluid (paste). Sludge with such a high moisture content is not convenient to transport. During the incineration disposal process, the large amount of water in the sludge needs to absorb a lot of heat, resulting in a waste of resources and reducing the sludge treatment capacity.

[0003] Therefore, it is necessary to reduce the moisture content in the sludge, thereby increasing the sludge processing capacity of the incineration plant. In recent years, steam drying or low-temperature drying processes have been mostly used to reduce the moisture content in the sludge to 35-40% before incineration. In this way, although the sludge processing capacity has increased, the investment and operating costs of sludge disposal are very high, which adds a great economic burden to the government. If the moisture in the wet sludge is removed by filter pressing, the cost can be reduced compared to steam drying or low-temperature drying. However, the existing filter pressing equipment has low filter pressing efficiency and slow filtrate extraction. In addition, there is no filter pressing equipment for wet sludge. If the existing filter pressing equipment is used to dehydrate the wet sludge, it can only be loaded through a simple feed pipe. The wet sludge is unevenly distributed, affecting the filter pressing effect. After the filter pressing, the unloading requires the help of tools to completely clear the sludge, which seriously affects the work efficiency. Utility Model Content

[0004] The utility model aims to solve the defects of the prior art and provides a wet sludge filter press device.

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

[0006] A wet sludge filter press equipment comprises a filter press frame, the filter press frame is provided with a material conveying pipe, a material distribution and unloading crane, a filter press device and a discharge hopper, two material distribution and unloading cranes are provided, and the two material distribution and unloading cranes are respectively provided on both sides of the filter press device, and the material distribution and unloading cranes are movably installed on the filter press frame, the filter press device comprises a filter press power mechanism and a filter press box, the filter press power mechanism is provided on the filter press frame, the filter press power mechanism provides filter press power for the filter press box, and two filter press boxes are provided corresponding to the material distribution and unloading cranes, and the two filter press boxes are movably provided on the filter press frame.

[0007] The beneficial effects of the utility model are as follows: the utility model realizes the distributing of wet sludge and the discharging of dry sludge after filtration through the distributing unloading crane, adopts a set of filter press device and two sets of distributing unloading cranes, thereby improving the efficiency of wet sludge filtration. While one set of distributing unloading cranes completes the distributing of the filter press box for filtration, the other set of distributing unloading cranes distributes the material to the other filter press box. While the distributing unloading cranes are discharging the material to the filter press box that has completed filtration, the filter press box that has completed filtration is also carrying out filtration. The two groups of cloth unloading cranes are operated in turn, which can greatly save operation time; the utility model can be movably installed on the filter press frame through the cloth unloading crane, and the reciprocating motion of the cloth unloading crane on the filter press frame can place the filter cloth wrapped with wet sludge in a flat layer in the filter press box during cloth distribution, thereby ensuring uniform cloth distribution; the utility model adopts a set of filter press power mechanism to complete the dehydration and filter pressing treatment of the wet sludge in the two groups of filter press boxes, thereby improving efficiency and simplifying the equipment structure.

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

[0009] Furthermore, the filter press box includes a box body and a bottom plate. The inner wall of the box body is provided with a plurality of guide bars, the guide bars are vertically arranged, and gaps are provided between adjacent guide bars.

[0010] The beneficial effect of adopting the above-mentioned further technical solution is that the gaps between the guide strips form guide grooves for liquid flow, and the guide grooves can quickly guide the water removed by the filter press from the filter press box to the outside of the filter press box, thereby improving the filter press efficiency.

[0011] Furthermore, the filter press device further includes a filter box moving drive mechanism, which drives the filter press box to move on the filter press frame.

[0012] The beneficial effect of adopting the above further technical solution is that the filter press box can be quickly moved between the two operating positions of cloth unloading and filter pressing through the filter box moving drive mechanism.

[0013] Furthermore, the filter press device also includes a filter cloth lifting power mechanism, which is arranged below the filter press box, the bottom plate is movably arranged in the box body, and the output end of the filter cloth lifting power mechanism is transmission-connected to the bottom plate.

[0014] The beneficial effect of adopting the above-mentioned further technical solution is that the filter cloth lifting power mechanism drives the bottom plate to rise and fall in the filter press, thereby driving the filter cloth in the filter press to rise and fall. During the cloth spreading process, the filter cloth lifting power mechanism drives the bottom plate to rise, facilitating the cloth unloading crane to spread the cloth. During the cloth spreading process, the filter cloth lifting power mechanism synchronously drives the bottom plate to descend, thereby driving the stacked filter cloth to descend, facilitating the cloth unloading crane to continue spreading the cloth. During the unloading process, the cloth unloading crane drives the filter cloth to move in the reverse direction to recycle the filter cloth. The filter cloth lifting power mechanism synchronously drives the bottom plate to rise, driving the filter cloth to rise, so that the filter cloth is pulled up and enters the cloth unloading crane as soon as possible, avoiding the situation where dry sludge falls into the filter press due to shaking or pulling force during the pulling process.

[0015] Furthermore, the cloth unloading crane includes a crane frame, which 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 crane frame, 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, and a feeding port is provided at the end of the conveying pipe, and the feeding port is arranged above the lower filter cloth, the unloading hopper is arranged at the unloading end of the cloth unloading crane, and the unloading hopper is arranged below the cloth unloading drive assembly.

[0016] The beneficial effects of adopting the above-mentioned further technical solution are: when spreading the cloth, the upper filter cloth and the lower filter cloth are driven to move by the cooperation of the cloth unloading drive assembly with the upper cloth winding roller and the lower cloth winding roller. During the movement of the filter cloth, the filter cloth wrapped with wet sludge is placed in a flat layer in the filter press box through the reciprocating motion of the traveling frame on the filter press frame, thereby ensuring the uniformity of the cloth. When unloading, the upper cloth winding roller and the lower cloth winding roller rotate in opposite directions to recover the filter cloth and unload the dry sludge after filtration into the unloading hopper, thereby realizing the integration of cloth spreading and unloading in the wet sludge filter press process, which is convenient to operate and has high work efficiency.

[0017] 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.

[0018] The beneficial effect of adopting the above-mentioned further technical solution is: when loading, the wet sludge falls directly onto the lower filter cloth on the chain conveyor after coming out of the loading port, 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 through transportation equipment.

[0019] 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.

[0020] The beneficial effect of adopting the above further technical solution is that the installation height of the upper pressing roller is adjusted by the pressing roller adjustment mechanism, so that the upper pressing roller is adapted to the treatment of wet sludge with different treatment amounts.

[0021] 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.

[0022] The beneficial effect of adopting the above-mentioned further technical solution is that only the edge pressure section of the upper pressure roller presses the filter cloth and drives the filter cloth to move, and the idling section in the middle does 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 from being squeezed out from both sides of the pre-filter cloth under the action of squeezing before entering the filter press box.

[0023] 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.

[0024] 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.

[0025] Furthermore, the length of the idling section is greater than or equal to the distance between the two material guide baffles.

[0026] 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 avoiding the wet sludge being squeezed by the edge section of the upper pressing roller.

[0027] 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.

[0028] 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. The material guide baffle provides diversion and limiting for the transportation of the wet sludge; 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 at the same time avoid the material guide baffle from affecting the unloading.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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

[0034] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0035] Figure 2 for Figure 1 A magnified view of point A in the figure;

[0036] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model from another angle;

[0037] Figure 4 This is the main view of the utility model;

[0038] Figure 5This is a schematic diagram of the three-dimensional structure of the material discharging crane of the present invention;

[0039] Figure 6 This is a schematic diagram of the three-dimensional structure of the material discharging crane of the present invention from another angle;

[0040] Figure 7 This is the front view of the material discharging crane of the utility model;

[0041] Figure 8 This is a schematic diagram of the three-dimensional structure of the filter press box of the utility model;

[0042] Figure 9 This is a cross-sectional view of the filter press box of the utility model;

[0043] Figure 10 It is a schematic diagram of the three-dimensional structure of the upper pressing roller of the utility model.

[0044] The reference numerals are as follows: 100, filter press frame; 101, traveling frame; 102, feed pipe; 103, discharge hopper; 104, frame guide rail; 105, frame roller; 106, upper cloth roll; 107, lower cloth roll; 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 Trigger; 117, pressure 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; 201, filter press box; 2011, box body; 2012, guide strip; 2013, bottom plate; 202, filter box guide rail; 203, filter box roller; 204, horizontal hydraulic cylinder; 205, lifting hydraulic cylinder; 206, hydraulic press. DETAILED DESCRIPTION

[0045] 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.

[0046] 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.

[0047] See also Figures 1-10A wet sludge filter press device includes a filter press frame 100, on which a feed pipe 102, a material discharging crane, a filter press device and a discharge hopper 103 are provided. Two material discharging cranes are provided, and the two material discharging cranes are respectively arranged on both sides of the filter press device. The material discharging crane can be movably installed on the filter press frame 100. The filter press device includes a filter press power mechanism and a filter press box 201. The filter press power mechanism is arranged on the filter press frame 100, and the filter press power mechanism provides filter press power for the filter press box 201. The utility model provides a filter press power mechanism for the filter press power mechanism. Without limitation, specifically, in this embodiment, the filter press power mechanism is a hydraulic press 206, the output end of the hydraulic press 206 is connected to the pressure plate, and the hydraulic press 206 drives the pressure plate to rise and fall to realize the filtration of the wet sludge, and the filter press boxes 201 are provided with two corresponding to the cloth unloading crane, and the two filter press boxes 201 are movably provided on the filter press frame 100. Specifically, a filter box guide rail 202 is provided on the filter press frame 100, and a filter box roller 203 is provided at the bottom of the filter press box 201, and the filter press box 201 is movably mounted on the filter box guide rail 202 through the filter box roller 203.

[0048] For details, see Figure 8-Figure 9 In this embodiment, the filter press box 201 includes a box body 2011 and a bottom plate 2013. The inner wall of the box body 2011 is provided with a plurality of guide bars 2012. The guide bars 2012 are vertically arranged, and gaps are provided between adjacent guide bars 2012.

[0049] The filter press device also includes a filter box moving drive mechanism, which drives the filter press box 201 to move on the filter press frame 100. The present utility model does not limit the filter box moving drive mechanism. Specifically, in this embodiment, the filter box moving drive mechanism is a horizontal hydraulic cylinder 204, and the piston rod end of the horizontal hydraulic cylinder 204 is connected to the filter press box 201. The filter press box 201 is driven to move on the filter box guide rail 202 by the extension and contraction of the piston rod of the horizontal hydraulic cylinder 204, thereby driving the filter press box 201 to move between the two operating positions of cloth and filter pressing, completing the cloth and filter pressing operations of the filter press box 201.

[0050] The filter press device also includes a filter cloth lifting power mechanism, which is arranged below the filter press box 201, and the bottom plate 2013 is movably arranged in the box body 2011. The output end of the filter cloth lifting power mechanism is transmission connected with the bottom plate 2013. The utility model does not limit the filter cloth lifting power mechanism. Specifically, in this embodiment, the filter cloth lifting power mechanism is a lifting hydraulic cylinder 205, and the piston rod end of the lifting hydraulic cylinder 205 is transmission connected with the bottom plate 2013. The piston rod of the lifting hydraulic cylinder 205 is extended and retracted to drive the bottom plate 2013 to rise and fall in the filter press box 201, thereby realizing the lifting of the filter cloth in the filter press box 201 and assisting in completing the cloth and unloading operations. The lifting hydraulic cylinder 205 can be fixedly set at the material distributing and unloading operation position of the filter press frame 100, and does not need to move synchronously with the filter press box 201. When the filter press box 201 moves to the material distributing and unloading operation position, the lifting hydraulic cylinder 205 is located below the filter press box 201, which facilitates the lifting hydraulic cylinder 205 to lift the bottom plate 2013 of the filter press box 201.

[0051] See also Figure 2 、 Figure 5-Figure 7 The material discharging 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 the bottom of the crane frame 101 is provided with a frame roller 105. 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 drive motor or a drive cylinder.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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 (see Figure 10 ).

[0056] 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.

[0057] 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 .

[0058] The spreading roller 124 is also rotatably provided on the carriage 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 forward and reverse spirals contact the filter cloth, driving the filter cloth to unfold toward the two ends of the spreading roller 124. The present invention does not limit the second lifting mechanism 121. Specifically, in this embodiment, the second lifting mechanism 121 is a cylinder.

[0059] 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.

[0060] 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.

[0061] The feed port 114 is configured as a duckbill type, and a feed valve is provided on the feed pipe 102 .

[0062] The operation process of this utility model is as follows:

[0063] 1. Fabric:

[0064] In the initial state, the filter press box 201 is at the cloth unloading end of the cloth unloading crane, that is, below the end of the chain conveyor 116 away from the unloading hopper 103. The piston rod of the lifting hydraulic cylinder 205 is extended, driving the bottom plate 2013 to rise to the upper part of the filter press box 201.

[0065] 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 on 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 from the upper cloth winding roller 106 to the chain conveyor 116 and the upper pressing roller 115 in sequence. 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.

[0066] The upper filter cloth 112 and the lower filter cloth 113 wrapped with wet sludge fall into the filter press box 201 of 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 wrapped with wet sludge to be laid in a stacked state in the filter press box 201, and at the same time, the piston rod of the lifting hydraulic cylinder 205 contracts, driving the bottom plate 2013 to descend synchronously, so that the stacked filter cloths slowly descend, the cloth is evenly distributed, the cloth distribution efficiency is high, and the filter press device has a good filtration effect when filtering. During the cloth distribution process, 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.

[0067] 2. Filter Press:

[0068] After the filter cloth in the filter press box 201 is full, the piston rod of the lifting hydraulic cylinder 205 is reset to avoid interference with the filter press box 201. The piston rod of the horizontal hydraulic cylinder 204 is extended, driving the filter press box 201 to move to the bottom of the hydraulic press 206. The hydraulic press 206 drives the pressing plate to descend, and performs a filter pressing operation on the filter cloth in the filter press box 201 to squeeze out the moisture in the wet sludge on the filter cloth. The squeezed out moisture quickly flows out from the guide groove in the filter press box 201. After the filtration is completed, the piston rod of the horizontal hydraulic cylinder 204 is retracted, driving the filter press box 201 to move to the cloth unloading end of the cloth unloading crane.

[0069] 3. Unloading:

[0070] After the filter press box 201 moves to the cloth unloading end of the cloth unloading crane, the piston rod of the lifting hydraulic cylinder 205 extends, driving the bottom plate 2013 to rise until the uppermost filter cloth rises to the top of the filter press box 201.

[0071] The upper cloth roller 106 and the lower cloth roller 107 on the cloth unloading crane move in opposite directions, dragging the upper filter cloth 112 and the lower filter cloth 113 in the filter press box 201 out. At the same time, the piston rod of the lifting hydraulic cylinder 205 continues to extend, driving the bottom plate 2013 to rise synchronously, and continuously lifting the filter cloth.

[0072] 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 material guide baffle 118 to rise to prevent the material guide baffle 118 from affecting the movement of the dry sludge sheet. The dry sludge sheet falls into the discharge hopper 103 after passing through the chain conveyor 116, and is transported to the yard or other process equipment through the screw conveying equipment.

[0073] During the unloading process, the second lifting mechanism 121 drives the spreading roller 124 to descend. The forward spiral and reverse spiral on the spreading roller 124 assist in spreading the filter cloth to prevent the 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.

[0074] The cloth unloading cranes of the present invention are arranged on both sides of the filter press device. While the filter press box 201 clothed by one group of cloth unloading cranes is performing filtration, the filter press box 201 that has completed filtration 201 returns to the cloth unloading cranes for unloading while the filter press box 201 that has completed filtration 201 is performing filtration. The two groups of cloth unloading cranes and the filter press box 201 are operated in turn, which can greatly save the operation time.

[0075] 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 wet sludge filter press 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 material distribution and unloading crane, a filter press device and a discharge hopper (103), wherein two material distribution and unloading cranes are provided, and the two material distribution and unloading cranes are respectively provided on both sides of the filter press device, and the material distribution and unloading cranes are movably installed on the filter press frame (100), and the filter press device comprises a filter press power mechanism and a filter press box (201), wherein the filter press power mechanism is provided on the filter press frame (100), and the filter press power mechanism provides filter press power for the filter press box (201), and the filter press box (201) is provided with two corresponding to the material distribution and unloading cranes, and the two filter press boxes (201) are movably provided on the filter press frame (100).

2. The wet sludge filter press equipment according to claim 1, characterized in that: The filter press box (201) comprises a box body (2011) and a bottom plate (2013); the inner wall of the box body (2011) is provided with a plurality of guide bars (2012); the guide bars (2012) are arranged vertically, and gaps are provided between adjacent guide bars (2012).

3. The wet sludge filter press equipment according to claim 2, characterized in that: The filter press device further comprises a filter box moving drive mechanism, which drives the filter press box (201) to move on the filter press frame (100).

4. The wet sludge filter press equipment according to claim 3, characterized in that: The filter press device further comprises a filter cloth lifting power mechanism, the filter cloth lifting power mechanism being arranged below the filter press box (201), the bottom plate (2013) being movably arranged in the box body (2011), and the output end of the filter cloth lifting power mechanism being in transmission connection with the bottom plate (2013).

5. The wet sludge filter press equipment according to any one of claims 1 to 4, characterized in that: The cloth unloading crane comprises a crane frame (101), the crane frame (101) is movably mounted on the filter press frame (100), 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), the upper cloth rolling roller (106) is used to release and retract the upper filter cloth (112), the lower cloth rolling roller (107) is used to release and retract the lower filter cloth (113), and the upper filter cloth (112) is rotated in accordance with the filter press frame (100). The lower filter cloth (113) passes through the upper cloth winding roller (106), the upper guide roller (108) and the cloth unloading drive assembly in turn, and the lower filter cloth (113) passes through the lower cloth winding roller (107) and the cloth unloading drive assembly in turn. 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.

6. The wet sludge filter press equipment according to claim 5, 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).

7. The wet sludge filter press equipment according to claim 6, 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).

8. The wet sludge filter press equipment according to claim 7, 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).

9. The wet sludge filter press equipment according to claim 8, characterized in that: The cloth unloading crane is also provided with a material guide baffle (118), and the cloth unloading crane is provided with a mounting door frame (119). The material guide baffle (118) is mounted on the mounting door frame (119) via a first lifting mechanism (120). Two material guide baffles (118) are symmetrically provided, and the two material guide baffles (118) are arranged above the lower filter cloth (113) and behind the loading port (114).

10. The wet sludge filter press equipment 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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