Deviation correction early warning device for filter cloth of belt filter

Abstract

The utility model relates to the technical field of belt filter presses, and discloses a belt filter filter cloth deviation rectification early warning device, which comprises a deviation rectification valve rod, a group of rollers are symmetrically arranged on the deviation rectification valve rod along the vertical direction, the two rollers are arranged at intervals, and a channel for the filter cloth to pass through is formed between the two rollers; each group roller is movably connected with a rotating speed sensor; the rotating speed sensors are connected with a control system for controlling the belt filter to work; according to the utility model, a signal can be provided for the deviation of the filter cloth in the vertical direction in the running process of the filter cloth, so that a control system can quickly respond and adjust, the damage probability of the filter cloth is reduced, and the service life of the filter cloth is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of belt filter presses, in particular to a deviation rectification and early warning device for the filter cloth of a belt filter press. Background Art

[0002] In the prior art, the deviation rectification of the filter cloth is usually realized by controlling the movement of the deviation rectification roller by means of a cylinder or an airbag; specifically, deviation rectification valve rods are arranged on both sides of the filter cloth as an early warning mechanism. When the filter cloth is deflected and collides with the deviation rectification valve rods, the deviation rectification valve rods move to trigger the control system to open the airbag or the cylinder, so as to push the deviation rectification roller to move and realize the deviation rectification work. This method can only realize the deviation rectification in the horizontal direction. If the filter cloth is deflected in the vertical direction during operation, it will be in a too tight or too loose state. If it is not warned and adjusted in time, it is very easy to cause the filter cloth to be damaged, affecting the service life of the filter cloth. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a deviation rectification and early warning device for the filter cloth of a belt filter press, which can provide signals for the deviation of the filter cloth in the vertical direction during the operation of the filter cloth, so that the control system can make a quick response adjustment, reduce the probability of damage to the filter cloth, and extend its service life.

[0004] The utility model adopts the following technical solutions:

[0005] A deviation rectification and early warning device for the filter cloth of a belt filter press includes deviation rectification valve rods, and a group of rollers are symmetrically arranged on the deviation rectification valve rods along the vertical direction. The two rollers are arranged at intervals, and a channel for the filter cloth to pass through is formed between them; a rotation speed sensor is movably connected to each group of rollers, and the rotation speed sensor is connected to a control system for controlling the operation of the belt filter press.

[0006] Preferably, two mounting plates are symmetrically arranged on the deviation rectification valve rods, and the rollers are rotatably arranged on the opposite end faces of the two mounting plates.

[0007] Preferably, a support rod is arranged on the mounting plate, and the roller is elastically arranged on the support rod.

[0008] Preferably, the roller is rotatably arranged on a sliding sleeve, and the sliding sleeve is elastically sleeved outside the support rod.

[0009] Preferably, a spring is arranged on the sliding sleeve, the spring is sleeved outside the support rod, and a threaded sleeve is arranged on the support rod in a threaded manner, and the threaded sleeve abuts against one end of the spring far away from the sliding sleeve.

[0010] Preferably, a through hole for the support rod to pass through is formed on the mounting plate, and one end of the support rod far away from the roller passes through the through hole and is threadedly connected to an adjusting screw sleeve rotatably arranged on the mounting plate.

[0011] Preferably, a limiting block is arranged in the through through hole, and a limiting groove matching the limiting block is arranged on the support rod.

[0012] Preferably, a connecting rod is arranged on the sliding sleeve, and the roller is rotatably connected to the connecting rod; a cleaning cover sleeved outside the roller is arranged on the connecting rod, and a cleaning blade extending outwards is arranged on one side of the cleaning cover opposite to the running direction of the filter cloth; wherein the bottoms of the cleaning cover and the cleaning blade are both located above the bottom of the roller.

[0013] Preferably, the lower part of the cleaning blade is inclined towards the center of the filter cloth.

[0014] Preferably, a cleaning plate is arranged on one side of the top end of the cleaning cover close to the roller.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: by symmetrically arranging rollers on the deviation correction valve rod and leaving a channel for the filter cloth to pass through between the rollers, when the filter cloth deviates upwards or downwards, it can drive the rollers to rotate by contacting the rollers, and transmit the signals received by the rotational speed sensors to the control system. The control system makes adaptive adjustments according to the signals transmitted by the rotational speed sensors at different positions, so that the filter cloth returns to the normal working state, reduces the probability of damage to the filter cloth, and prolongs the service life of the filter cloth. Description of the Drawings

[0016] Figure 1 It is a top view of an embodiment of the present application;

[0017] Figure 2 is Figure 1 an enlarged view of A in

[0018] Figure 3 is Figure 1 an enlarged view of B in

[0019] Figure 4 It is a structural schematic diagram of the cleaning cover of an embodiment of the present application. Detailed Embodiments

[0020] The following will clearly and completely describe the present utility model in conjunction with the drawings and embodiments:

[0021] Such as Figures 1 to 4As shown in the figure, a deviation rectification warning device for the filter cloth of a belt filter of the present utility model includes a deviation rectification valve rod 1, which is movably arranged on the frame. When the filter cloth 2 is deflected horizontally during operation, it will push the deviation rectification valve rod 1 to move, thereby triggering the control system of the cylinder or airbag to start working and complete the deviation rectification operation. Since this function and structure are common prior arts and not the improvement points of this application, they will not be elaborated here; a group of rollers 3 are symmetrically arranged on the deviation rectification valve rod 1 along the vertical direction, and the two rollers 3 are spaced apart, and a channel for the filter cloth 2 to pass through is formed therebetween. When the filter cloth 2 is running normally, it is located between the two rollers 3 and does not contact the upper and lower rollers 3; a rotational speed sensor 4 is movably connected to each group of rollers, and the rotational speed sensor 4 is connected to the control system for controlling the operation of the belt filter; during operation, when the filter cloth 2 deviates upward or downward beyond the set range, it will contact the roller 3. As the filter cloth 2 continues to run, the roller 3 will rotate, and after the rotational speed sensor 4 receives the signal, it will be transmitted to the control system, and the control system will make corresponding adjustments according to the signals transmitted from different rollers 3; for example, when the filter cloth 2 deviates downward and contacts the lower roller 3, there is a situation where the filter cloth 2 is slack. At this time, the control system can control the tensioning roller to tension the filter cloth 2 so that the filter cloth 2 returns to the right track again.

[0022] Furthermore, two mounting plates 5 are symmetrically arranged on the deviation rectification valve rod 1, and the rollers 3 are rotatably arranged on the opposite end faces of the two mounting plates 5. Among them, a support rod 6 is arranged on the mounting plate 5, and preferably one support rod 6 is arranged, and the roller 3 is elastically arranged on the support rod 6; the elastic arrangement of the roller 3 on the support rod 6 can reduce the friction between the filter cloth 2 and the roller 3 by the elastic sliding of the roller 3 along the support rod 6 when the filter cloth 2 deviates too much up and down. Specifically, the roller 3 is rotatably arranged on the sliding sleeve 7 through a bearing, and the sliding sleeve 7 is slidably connected to the support rod 6, and the sliding sleeve 7 can only slide along the support rod 6 towards the connected mounting plate, that is, the upper sliding sleeve 7 can only slide upward, and the lower sliding sleeve 7 can only slide downward; a spring 8 is arranged on the sliding sleeve 7, the spring 8 is sleeved outside the support rod 6, and a threaded sleeve 9 is arranged on the support rod 6 in a threaded manner, and the threaded sleeve 9 abuts against the end of the spring 8 away from the sliding sleeve 7; the roller 3 is elastically connected to the support rod 6 through the sliding sleeve 7, and the rotational speed sensor 4 is connected to the control system through a flexible wire. In this embodiment, the setting of the threaded sleeve 9 can adjust the elasticity of the spring 8 to meet the use in different situations.

[0023] Further, a through hole for the support rod 6 to pass through is formed in the mounting plate 5. After one end of the support rod 6 away from the roller 3 passes out of the through hole, it is threadedly connected to an adjusting sleeve 10 rotatably arranged on the mounting plate 5. By rotating the adjusting sleeve 10, the support rod 6 can be moved into and out of the through hole, thereby adjusting the distance between the two rollers 3 to meet different usage requirements. Preferably, a limiting block is arranged in the through hole, and a limiting groove 11 matching the limiting block is arranged on the support rod 6. To ensure that when the adjusting sleeve 10 is rotated, the support rod 6 will not drive the roller 3 to rotate synchronously, and the stable movement of the support rod 6 in the vertical direction is realized.

[0024] Further, a connecting rod 12 is arranged on the sliding sleeve 7, and the roller 3 is rotatably connected to the connecting rod 12 through a bearing; a cleaning cover 14 sleeved outside the roller 3 is arranged on the connecting rod 12, and a cleaning blade 15 extending outward is arranged on one side of the cleaning cover 14 opposite to the running direction of the filter cloth 2. The cleaning blade 15 is used to clean larger particles on the filter cloth 2 during operation to ensure that the filter cloth 2 passes smoothly between the rollers 3; the bottoms of the cleaning cover 14 and the cleaning blade 15 are both located above the bottoms of the rollers 3 to prevent affecting the contact between the filter cloth 2 and the rollers 3 when the filter cloth 2 is offset. Preferably, the lower part of the cleaning blade 15 is inclined towards the center of the filter cloth 2 to push the large particles towards the middle of the filter cloth 2. A cleaning plate 16 is arranged on one side of the top end of the cleaning cover 14 close to the roller 3. The cleaning plate 16 can clean the surface of the roller 3 so that after the filter cloth 2 contacts the roller 3 and rotates with the roller 3, it contacts the cleaning plate 16 to timely clean the dirt adhered to the roller 3 to prevent affecting the subsequent rotation of the roller 3 and ensure the sensitivity of the warning.

[0025] The utility model neither affects the deviation warning of the filter cloth 2 in the horizontal direction by the deviation correction valve rod 1, nor can realize the warning of the vertical deviation of the filter cloth 2 through the contact between the filter cloth 2 and the rollers 3, which can greatly ensure the stable operation of the filter cloth 2 during work, reduce the damage rate of the filter cloth 2 during operation, extend the service life of the filter cloth 2, and has a simple structure and strong practicability.

Claims

1. A deviation correction warning device for the filter cloth of a belt filter, characterized in that: It includes a correction valve stem, on which a group of rollers are symmetrically arranged in the vertical direction. Two of the rollers are arranged at intervals, and a channel for the filter cloth to pass through is formed in the middle; each group of rollers is movably connected to a speed sensor, and the speed sensor is connected to a control system that controls the operation of the belt filter.

2. The deviation correction warning device for the filter cloth of the belt filter press according to claim 1, characterized in that: Two mounting plates are symmetrically arranged on the deviation-correcting valve stem, and the roller is rotatably arranged on the opposite end surfaces of the two mounting plates.

3. The deviation rectification warning device for the filter cloth of the belt filter press according to claim 2, characterized in that: A support rod is provided on the mounting plate, and the roller is elastically provided on the support rod.

4. The deviation rectification early warning device for the filter cloth of the belt filter press according to claim 3, characterized in that: The roller is rotatably arranged on the sliding sleeve, and the sliding sleeve is elastically sleeved on the outside of the support rod.

5. The deviation correction warning device for the filter cloth of the belt filter press according to claim 4, characterized in that: The sliding sleeve is provided with a spring, the spring is sleeved on the outside of the support rod, a threaded sleeve is threadedly provided on the support rod, and the threaded sleeve abuts against one end of the spring away from the sliding sleeve.

6. The deviation rectification early warning device for the filter cloth of the belt filter press according to claim 3, characterized in that: The mounting plate is provided with a through hole for the support rod to pass through. The end of the support rod away from the roller passes through the through hole and is threadedly connected to the adjusting screw sleeve rotatably arranged on the mounting plate.

7. The deviation correction warning device for the filter cloth of the belt filter press according to claim 6, wherein: A limiting block is arranged in the through hole, and a limiting groove matching the limiting block is arranged on the support rod.

8. The deviation rectification warning device for the filter cloth of the belt filter press according to claim 4, characterized in that: A connecting rod is provided on the sliding sleeve, and the roller is rotatably connected to the connecting rod; a cleaning cover is provided on the connecting rod and is sleeved on the outside of the roller, and a cleaning scraper extending outward is provided on the side of the cleaning cover opposite to the direction in which the filter cloth runs; wherein the bottom of the cleaning cover and the cleaning scraper are both located above the bottom of the roller.

9. The deviation rectification early warning device for the filter cloth of the belt filter press according to claim 8, characterized in that: The lower part of the cleaning scraper is arranged obliquely toward the center of the filter cloth.

10. The deviation correction warning device for the filter cloth of the belt filter press according to claim 9, wherein: A cleaning plate is provided on one side of the top end of the cleaning cover close to the roller.

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