A plate-and-frame separator with intelligent balance adjustment function

Abstract

The utility model relates to solid state pneumatic positive pressure conveying line technical field especially relates to a kind of plate-and-frame separator with intelligent balance adjusting function, including separator body, the left side import of separator body is fixedly connected with separator import transition piece, the end fixedly connected with special check valve of separator import transition piece away from separator body, adjustable flow guide device is provided in separator body, dust conveying pipeline is connected through in the right side of separator body, separator hopper is connected through in the bottom of separator body, separator body is internally provided with the separator grating plate inclinedly arranged, separator observation window is arranged in the outer wall of separator body.The utility model plate-and-frame separator structure is more compact, without occupying oversized vertical and horizontal space, greatly reduce the strict requirement to installation site, especially suitable for the solid waste treatment scene of limited space, while simplifying installation process, reduce the labor and time cost of installation link.

Description

Technical Field

[0001] This utility model relates to the field of solid pneumatic positive pressure conveying line technology, and in particular to a plate and frame separator with intelligent balance adjustment function. Background Technology

[0002] In today's industrial development, with the rapid advancement of industrial technology and the leapfrog progress of industrial automation, production lines in papermaking, printing, packaging, plastics, textiles, aluminum foil, bottling, feeding stations, and other processing and manufacturing processes are becoming increasingly highly automated, with continuous improvements in high-performance and high-capacity automated production lines. Simultaneously, with the nation's high emphasis on solid waste, certain processes in papermaking, printing, and packaging generate essential waste materials. To address the issues of waste recycling, energy conservation, and production cost control, these solid waste materials and scraps from different regions are shredded and transported to designated locations by one or more fans equipped with shredding and conveying functions for further recycling.

[0003] In the field of solid waste treatment, traditional cyclone separators have long been widely used as the mainstream separation equipment, with a typical structure of a circular upper part and a conical lower part. However, this type of equipment has significant technical shortcomings: on the one hand, the equipment is bulky and heavy, occupies a large area, and has high purchase and installation costs. Especially in solid waste treatment scenarios that match large air volumes, the equipment height often needs to reach tens of meters, imposing stringent requirements on installation space. On the other hand, maintenance and operation are extremely difficult. Once material blockage occurs inside the equipment, the unblocking process is complex and cumbersome, not only consuming a lot of manpower and resources, but also generating high downtime losses and maintenance costs, which seriously restricts the continuity and economy of solid waste treatment. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing equipment, which is bulky and heavy, occupies a large area, and has high purchase and installation costs. Especially in solid waste treatment scenarios that require large air volumes, the equipment height often needs to reach tens of meters, imposing stringent requirements on installation space. On the other hand, maintenance and operation are extremely difficult. Once material blockage occurs inside the equipment, the unblocking process is complex and cumbersome, which not only consumes a lot of manpower and resources, but also generates high downtime losses and maintenance costs, seriously restricting the continuity and economy of solid waste treatment. Therefore, a plate and frame separator with intelligent balance adjustment function is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A plate-and-frame separator with intelligent balance adjustment function includes a separator body, a separator inlet transition piece fixedly connected to the left inlet of the separator body, a special check valve fixedly connected to the end of the separator inlet transition piece away from the separator body, an adjustable flow guiding device inside the separator body, a dust conveying pipe connected through the right side of the separator body, a separator hopper connected through the bottom of the separator body, an inclined separator grid plate inside the separator body, and a separator observation window opened on the outer wall of the separator body.

[0007] Preferably, the special check valve includes a valve body inlet and a valve plate, the valve plate being connected to a rotating shaft via a bearing, and an angle being provided between the sealing surface of the valve plate and the valve body inlet.

[0008] Preferably, the pipe cross-section of the separator inlet transition piece gradually changes from circular to square, and its bottom is designed with an incline to assist in guiding and slowing down the flow of materials.

[0009] Preferably, the adjustable flow guiding device includes a separator flow guiding plate and an adjusting handle. The separator flow guiding plate has a three-section bending structure and is welded to a rotating shaft with the adjusting handle. Both ends of the rotating shaft are mounted on the inner wall of the separator body through bearings. The adjusting handle is installed on the outer side of the separator body.

[0010] Preferably, the separator grid plate is a plate-frame structure that can be pulled out as a whole from the opening on the side of the separator body. Connecting columns are fixedly connected to both sides of the outer wall of the separator grid plate. An installation plate is fixedly connected to the end of the connecting column away from the separator grid plate. The installation plate is fixedly connected to the outer wall of the separator body by bolts.

[0011] Preferably, it also includes a differential pressure transmitter, one pressure tapping point of which is set in the material discharge channel of the separator, and the other pressure tapping point is set on the dust outlet pipe of the separator, for detecting the pressure difference between the two points and transmitting the signal to the system PLC to control the air volume of the associated fan.

[0012] Preferably, one inner wall of the separator hopper is a vertical surface, and the other inner wall opposite to the separator hopper is an inclined surface.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. Compared with the traditional cyclone separators that are tens of meters high and bulky, the plate and frame separator of this utility model has a more compact structure. It does not require a large vertical and horizontal space, greatly reducing the stringent requirements for the installation site. It is especially suitable for solid waste treatment scenarios with limited space. At the same time, it simplifies the installation process, reduces the manpower and time costs of the installation process, and solves the pain points of traditional equipment that are difficult to deploy and have poor adaptability due to their size.

[0015] 2. In use, this utility model can detect the pressure difference between the material discharge channel and the dust outlet pipe of the separator in real time through a differential pressure transmitter, and transmit the signal to the system PLC to control the air volume of the associated fan. Combined with the three-section bending structure and adjustment function of the adjustable flow guide device, it can accurately quantify, monitor and adjust the parameters of the conveying fan and the balancing fan, realizing automatic balancing inside the separator. It not only efficiently solves the problem of collecting materials conveyed to the same location by multiple conveying fans at the same time, as well as the optimization of material and dust separation and pipeline balancing when the equipment is started and shut down, but also completely solves the problem of efficient separation of materials and dust that is difficult to achieve with traditional equipment. The separation efficiency is higher and the separation is more thorough, avoiding the subsequent processing troubles caused by incomplete separation, and ensuring the stable and orderly operation of the entire conveying system.

[0016] 3. When using this utility model, on the one hand, the overall structure of the equipment is simplified, the manufacturing cost is lower than that of traditional cyclone separators, and there is no need to invest in high purchase costs like belt conveyors; on the other hand, the energy consumption during operation is lower, significantly reducing operating costs compared to traditional equipment.

[0017] 4. In use, this invention utilizes the equipment's intelligent automatic balancing adjustment function, eliminating the need for manual intervention and completely solving the problem of inaccurate manual adjustments. Through automated monitoring and control, it reduces reliance on manual operation, avoids significant waste of human resources, and lowers factory labor costs. Furthermore, the equipment consumes less energy during operation, meeting energy conservation and emission reduction requirements. This reduces energy consumption and lowers energy expenditures for enterprises, helping them achieve green production. It not only creates direct economic wealth and profits for enterprises but also enhances their competitiveness in environmental protection and sustainable development. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a plate-and-frame separator with intelligent balance adjustment function proposed in this utility model.

[0019] Figure 2 This is a cross-sectional view of a plate-and-frame separator with intelligent balance adjustment function proposed in this utility model;

[0020] Figure 3This is a three-dimensional structural diagram of the separator grid plate of a plate-frame separator with intelligent balance adjustment function proposed in this utility model.

[0021] In the diagram: 1. Separator body; 2. Separator inlet transition piece; 3. Special check valve; 4. Dust conveying pipeline; 5. Separator hopper; 6. Separator guide plate; 61. Adjusting handle; 7. Separator grid plate; 71. Connecting column; 72. Mounting plate; 8. Separator observation window. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Reference Figures 1-3 A plate-and-frame separator with intelligent balance adjustment function includes a separator body 1, a separator inlet transition piece 2, a special check valve 3, a dust conveying pipe 4, a separator hopper 5, an adjustable flow guiding device, a separator grid plate 7, a separator observation window 8, and a differential pressure transmitter (not shown in the figure). The components are fixedly connected or interconnected to form a complete material separation system. The specific connection relationships and structural features are as follows:

[0024] The separator body 1 is a hollow cavity structure and is the core of material separation. The left inlet is fixedly connected to the separator inlet transition piece 2 by welding or bolts, and the right side is connected to the dust conveying pipe 4 through the flange. The bottom is connected to the separator hopper 5 through welding or bolts. The outer wall is provided with a rectangular or circular separator observation window 8 corresponding to the internal separation area. The observation window is made of tempered glass or transparent corrosion-resistant material and is sealed to the outer wall of the body by a sealing strip. This allows the operator to observe the internal material separation status, efficiency and balance in real time. At the same time, the flow trajectory of dust and air under the grid plate can be observed, and the separation effect can be judged intuitively.

[0025] A special check valve 3 is fixedly connected to the end of the separator inlet transition piece 2 away from the separator body 1. It is used to control the unidirectional conveying of materials and airflow, preventing backflow of airflow that could cause pipe blockage. This check valve includes a valve body inlet and a valve plate. The valve plate is rotatably connected to a shaft inside the valve body via a bearing, and a preset angle (preferably 15°-30°) is established between the valve plate and the sealing surface of the valve body inlet. This angle design ensures that when the airflow from the blower carries material into the valve body, the airflow can easily agitate the valve plate. When there is no airflow, the valve plate automatically adheres to the sealing surface of the valve body inlet under the combined action of its own weight and the angle of the sealing surface, preventing external airflow or airflow from other pipes from entering the equipment's pipeline in reverse, thus avoiding the risk of pipe blockage at its source.

[0026] The separator inlet transition piece 2 serves as a transition channel for material to enter the separator body from the check valve. Its pipe cross-section adopts a design that gradually changes from a circle to a square, and the bottom is inclined (preferably at an inclination angle of 20°-45°). The circular cross-section is adapted to the outlet of the special check valve 3, and the square cross-section is adapted to the left inlet of the separator body 1. The gradual change in cross-section can achieve a smooth transition of airflow; the inclined design at the bottom can assist in guiding the material and ensure that the material enters the separator body 1 at a steady speed.

[0027] An adjustable airflow guide device is located inside the separator body 1 near the inlet to precisely control the airflow direction entering the body and optimize separation efficiency. This device includes a separator guide plate 6 and an adjusting handle 61, wherein:

[0028] The separator guide plate 6 adopts a three-section bending structure, with the bending angle preset according to the airflow guidance requirements (preferably 10°-20° for each section), and is fixed to a metal rotating shaft by welding.

[0029] The two ends of the rotating shaft are mounted on the inner wall of the separator body 1 by deep groove ball bearings or rolling bearings to ensure that the rotating shaft can rotate flexibly;

[0030] The adjusting handle 61 has an L-shaped or strip-shaped structure. One end of it is connected by a key or welded to the end of the rotating shaft that extends to the outside of the separator body 1. The operator can rotate the adjusting handle 61 to drive the rotating shaft and the guide plate to rotate synchronously, thereby changing the guiding angle of the airflow in the body. When the guide plate is tilted towards the grid plate, more material can be guided to the surface of the grid plate, enhancing the separation effect. When the guide plate is tilted away from the grid plate, the impact of the airflow on the grid plate can be reduced. This is suitable for processing light materials and achieving dynamic optimization of separation efficiency.

[0031] The separator grid plate 7 is the core filtration component for separating materials, air, and dust. It is located in the lower middle part of the separator body 1 and is inclined (preferably at an angle of 15°-30°) to facilitate the material sliding towards the hopper under gravity. Its specific structure and installation method are as follows:

[0032] The grating adopts a plate-frame structure with a metal frame frame and several parallel metal grating strips welded or inlaid inside. The spacing between the grating strips is determined according to the particle size of the material to be separated (preferably 2mm-20mm) to ensure that air and dust can pass smoothly through the grating gaps, while the material is intercepted on the grating surface.

[0033] A rectangular opening is provided on the side of the separator body 1 corresponding to the position of the grid plate, and a sealing flange is welded to the edge of the opening;

[0034] Cylindrical connecting columns 71 are welded and fixed on both sides of the outer wall of the grating plate 7. A rectangular mounting plate 72 is welded and fixed on the end of the connecting column 71 away from the grating plate. Bolt holes adapted to the sealing flange are opened on the mounting plate 72.

[0035] During installation, insert the grating plate 7 into the body through the opening on the side of the body, so that the mounting plate 72 fits against the sealing flange, and then fix the mounting plate to the flange with bolts to achieve detachable installation of the grating plate. When the grating plate becomes blocked or worn, the bolts can be removed, the grating plate can be pulled out for cleaning or replacement, reducing maintenance costs and improving the service life of the equipment.

[0036] The separator hopper 5 has a funnel-shaped structure with an asymmetrical inner wall design: one side is a vertical surface, and the other side is an inclined surface (preferably at an angle of 45°-60°). The vertical surface design prevents material from accumulating due to excessive tilting during its descent, while the inclined surface guides the material towards the outlet at the bottom of the hopper. This ensures that the separated material (i.e., the waste material intercepted on the surface of the grid plate) can smoothly enter the discharge channel at the bottom of the hopper when it falls freely under gravity, and is ultimately conveyed to subsequent collection devices such as balers and pulpers, preventing material blockage within the hopper.

[0037] To achieve pressure balance between the equipment and associated fans (including solid waste fans conveying waste materials and balancing fans balancing airflow), this equipment is also equipped with a differential pressure transmitter, the specific setting and control logic of which are as follows:

[0038] The differential pressure transmitter has two pressure taps: one pressure tap is installed in the material discharge channel of the separator hopper 5 (near the bottom of the hopper) through a pressure tapping pipe, which is used to detect the pressure in the material discharge channel; the other pressure tap is installed on the dust conveying pipe 4 (near the outlet end of the separator body 1) through a pressure tapping pipe, which is used to detect the pressure in the dust outlet pipe.

[0039] The differential pressure transmitter converts the detected pressure difference between two points into a standard 4-20mA electrical signal, which is then transmitted to the system's PLC controller.

[0040] The PLC controller has a preset pressure balance threshold (determined according to the equipment model and processing capacity, with a preferred pressure difference range of ±50Pa). When the detected pressure difference exceeds the threshold, the PLC controller automatically sends a control signal to the balancing fan: if the pressure in the material discharge channel is higher than the pressure in the dust outlet pipe, it indicates that the airflow pressure inside the separator is too high, and the controller controls the balancing fan to increase the airflow and reduce the pressure in the dust outlet pipe; if the pressure in the material discharge channel is lower than the pressure in the dust outlet pipe, it indicates that the airflow pressure inside the separator is too low, and the controller controls the balancing fan to decrease the airflow and increase the pressure in the dust outlet pipe, ultimately achieving pressure balance inside the separator and ensuring stable separation.

[0041] Working principle:

[0042] First, dispersed or non-dispersed waste materials from different areas are drawn in by the negative pressure of one or more solid waste blowers and transported through pipelines to the valve body inlet of special check valve 3. The airflow carries the material into special check valve 3, and the airflow thrusts the valve plate. During the rotation of the valve plate, the airflow is decelerated for the first time, while preventing airflow from other pipelines from entering in reverse. After passing through the check valve, the material and airflow enter the separator inlet transition piece 2. Utilizing the gradual change in the cross-section and the inclined structure at the bottom of the transition piece, the material enters the separator body 1 at a steady speed.

[0043] The airflow entering the separator is precisely directed to the surface of the separator grid plate 7 by the adjustable guide device. The angle of the guide plate can be adjusted in real time by the adjustment handle 61 to ensure that the airflow and material are in uniform contact with the grid plate. The material is intercepted on the surface by the grid plate 7, while the air and dust flow downward through the gaps in the grid plate, realizing the separation of "material-air-dust". The operator can observe the accumulation state of the material on the grid plate, the separation efficiency, and the flow trajectory of air and dust in real time through the separator observation window 8 to determine whether the separation is normal. The differential pressure transmitter detects the pressure difference between the material discharge channel and the dust outlet pipe in real time and transmits the signal to the PLC controller. The controller automatically adjusts the air volume of the balancing fan according to the pressure difference to maintain the internal pressure balance of the separator and avoid the decrease in separation efficiency or pipe blockage caused by pressure imbalance.

[0044] The separated material slides down the grid plate to the separator hopper 5 under the action of gravity, and then enters the baler, pulper and other collection devices through the material drop channel at the bottom of the hopper; the air and dust are transported to the subsequent exhaust gas treatment system (such as bag filter) through the dust conveying pipe 4 to achieve environmentally friendly emissions.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A plate-and-frame separator with intelligent balance adjustment function, comprising a separator body (1), characterized in that, The separator body (1) is fixedly connected to the left inlet of a separator inlet transition piece (2), and a special check valve (3) is fixedly connected to the end of the separator inlet transition piece (2) away from the separator body (1). An adjustable flow guiding device is provided inside the separator body (1). A dust conveying pipe (4) is connected through the right side of the separator body (1). A separator hopper (5) is connected through the bottom of the separator body (1). An inclined separator grid plate (7) is provided inside the separator body (1). A separator observation window (8) is opened on the outer wall of the separator body (1).

2. A plate-and-frame separator with intelligent balance adjustment function according to claim 1, characterized in that, The special check valve (3) includes a valve body inlet and a valve plate. The valve plate is connected to a rotating shaft via a bearing, and an angle is provided between the valve plate and the sealing surface of the valve body inlet.

3. A plate-and-frame separator with intelligent balance adjustment function according to claim 1, characterized in that, The pipe cross section of the separator inlet transition piece (2) gradually changes from a circle to a square, and its bottom is designed to be inclined to assist in guiding and decelerating the logistics.

4. A plate-and-frame separator with intelligent balance adjustment function according to claim 1, characterized in that, The adjustable flow guiding device includes a separator flow guiding plate (6) and an adjusting handle (61). The separator flow guiding plate (6) is a three-section bent structure and is welded to a rotating shaft with the adjusting handle (61). Both ends of the rotating shaft are installed on the inner wall of the separator body (1) through bearings. The adjusting handle (61) is installed on the outer side of the separator body (1).

5. A plate-and-frame separator with intelligent balance adjustment function according to claim 1, characterized in that, The separator grid plate (7) is a plate frame structure and can be pulled out as a whole from the opening on the side of the separator body (1). Connecting columns (71) are fixedly connected to both sides of the outer wall of the separator grid plate (7). An installation plate (72) is fixedly connected to the end of the connecting column (71) away from the separator grid plate (7). The installation plate (72) is fixedly connected to the outer wall of the separator body (1) by bolts.

6. A plate-and-frame separator with intelligent balance adjustment function according to claim 1, characterized in that, It also includes a differential pressure transmitter, one pressure tapping point of which is set in the separator material discharge channel and the other pressure tapping point is set on the separator dust outlet pipe. It is used to detect the pressure difference between the two points and transmit the signal to the system PLC to control the air volume of the associated fan.

7. A plate-and-frame separator with intelligent balance adjustment function according to claim 1, characterized in that, One inner wall of the separator hopper (5) is a vertical surface, and the other inner wall of the separator hopper (5) is an inclined surface.

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