Horizontal feeding pump of filter press

Abstract

The utility model provides a horizontal feeding pump of a filter press. The horizontal feeding pump comprises a piston cylinder and a telescopic mechanism, a first discharging check valve and a second discharging check valve are arranged at a first discharging opening and a second discharging opening of the piston cylinder correspondingly and used for controlling one-way outflow of materials. A first feeding hole and a second feeding hole are respectively formed in the bottoms or the middle lower parts of the rod cavity and the rodless cavity of the piston cylinder; a first feeding check valve and a second feeding check valve are respectively arranged at the first feeding hole and the second feeding hole and are respectively used for controlling material flow to flow into the rod cavity and the rodless cavity in a one-way manner; the telescopic end of the telescopic mechanism is connected with a piston rod of the piston cylinder and used for driving a piston in the piston cylinder to move in a reciprocating mode, and then alternate work of the rod cavity and the rodless cavity is achieved. The rod cavity and the rodless cavity of the piston cylinder are conveying working cavities and continuously and alternately work, so that the working efficiency is greatly improved, and the production cost is also reduced.

Description

Technical Field

[0001] This utility model relates to the field of pump technology for filter presses, and in particular to a horizontal feed pump for filter presses. Background Technology

[0002] A filter press is a commonly used solid-liquid separation machine. By applying pressure to a solid-liquid mixture, the liquid material in the mixture is forced to seep out and separate from the solid material. Filter presses are mostly used to process solid-liquid mixtures such as slurry and mud. These materials usually have high viscosity and poor flowability, so a dedicated feed pump is required when using a filter press to pump the material into the filter press.

[0003] Common pumps used in filter presses include slurry pumps and screw pumps. Slurry pumps use a motor to drive the impeller, which in turn feeds material into the filter press. Screw pumps, on the other hand, use a motor to drive the screw, which in turn feeds material into the filter press. Both types of feed pumps directly utilize the mechanical energy generated by the motor torque, resulting in relatively high energy consumption, high cost, and low efficiency. Furthermore, existing feed pumps occupy a large space and are generally quite bulky. Utility Model Content

[0004] The purpose of this utility model is to provide a horizontal feed pump for a filter press to solve at least one of the above-mentioned technical problems in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model provides a horizontal feed pump for a filter press, comprising: a piston cylinder and a telescopic mechanism;

[0006] The piston cylinder has a first discharge port at the top of the rod chamber and a second discharge port at the top of the rodless chamber or on the far end face away from the piston rod.

[0007] A first discharge check valve and a second discharge check valve are respectively provided at the first discharge port and the second discharge port to control the unidirectional flow of materials.

[0008] The piston cylinder has a first feed port and a second feed port at the bottom or lower middle part of the rod chamber and the rodless chamber, respectively; a first feed check valve and a second feed check valve are respectively provided at the first feed port and the second feed port, which are used to control the unidirectional flow of material into the rod chamber and the rodless chamber, respectively.

[0009] The telescopic end of the telescopic mechanism is connected to the piston rod of the piston cylinder, which drives the piston in the piston cylinder to move back and forth, thereby realizing the alternating operation of the rod chamber and the rodless chamber.

[0010] Compared to existing technologies, the extension and retraction processes of the telescopic mechanism in this application can both perform work. Both the rod chamber and the rodless chamber of the piston cylinder are conveying working chambers, and the two work continuously and alternately, which greatly improves work efficiency and reduces production costs. Furthermore, by setting the first discharge port at the top and the second discharge port at the top or the end face of one end of the piston cylinder axially, the entire horizontal feed pump appears slender, greatly reducing the floor space occupied, and facilitating installation, commissioning, and maintenance.

[0011] Furthermore, it also includes a feed line, which is connected to the first feed port and the second feed port, for feeding material into the piston cylinder in the rod chamber and the rodless chamber;

[0012] It also includes a feed pipeline, which is connected to the first and second discharge ports and is used to transport the material in the rod chamber and the rodless chamber to the filter press.

[0013] Furthermore, it includes a three-way check valve; the three-way check valve includes a three-way valve body, the valve body including: a first connection port, a second connection port and a third connection port; a valve disc is provided at the third connection port for controlling the unidirectional outflow or inflow of materials.

[0014] Preferably, the three-way check valve is T-shaped and has a main delivery pipeline connecting the first and second connection ports, as well as an output branch. One end of the output branch is perpendicularly connected to the main delivery pipeline, and the other end of the output branch is the third connection port. The valve disc is located inside the output branch.

[0015] Preferably, the valve also includes a return spring, with its two ends abutting against the valve body and the valve disc respectively, tending to force the valve disc to close.

[0016] Furthermore, at least one of the first discharge check valve and the second discharge check valve is the three-way check valve, and they are connected in series on the feed pipeline.

[0017] The first and second connection ports of the valve body of the series-connected three-way check valve are respectively connected to the feed pipelines at both ends, and the third connection port is connected to the first or second discharge port of the piston cylinder through a pipeline or directly.

[0018] This application designs a three-way check valve, thereby realizing the connection of the first discharge check valve and the second discharge check valve in series, which is simpler and more compact in structure and further saves space occupied by the whole body.

[0019] Preferably, one of the first discharge check valve and the second discharge check valve is a three-way check valve, which is connected in series on the feed pipeline; the other of the first discharge check valve and the second discharge check valve is located at one end of the feed pipeline, and the other end of the feed pipeline is provided with a main feed outlet.

[0020] Furthermore, at least one of the first feed check valve and the second feed check valve is the three-way check valve, and they are connected in series on the feed pipeline.

[0021] The first and second connection ports of the valve body of the series-connected three-way check valve are respectively connected to the feed pipes at both ends, and the third connection port is connected to the first or second feed port of the piston cylinder through a pipe or directly.

[0022] This application designs a three-way check valve, thereby realizing the connection of the first feed check valve and the second feed check valve in series, which is simpler and more compact in structure and further saves space occupied by the whole body.

[0023] Preferably, one of the first feed check valve and the second feed check valve is a three-way check valve, which is connected in series on the feed pipeline; the other of the first feed check valve and the second feed check valve is located at one end of the feed pipeline, and the other end of the feed pipeline is provided with a main feed port.

[0024] Furthermore, the telescopic mechanism is a hydraulic cylinder; it also includes an oil pump and a reversing valve, with the oil pump outlet connected to the reversing valve inlet, and the two control outlets of the reversing valve connected to the two chambers of the hydraulic cylinder respectively through oil circuits.

[0025] Preferably, a level sensor and a temperature sensor are installed inside the oil tank to monitor the level and temperature of the hydraulic oil in the tank in real time.

[0026] Furthermore, it also includes a controller, which is connected to the oil pump and the reversing valve respectively, and is used to control the oil pump to alternately supply oil to the two chambers of the hydraulic cylinder to realize the extension or retraction of the hydraulic cylinder push rod.

[0027] Preferably, the push rod is connected to the piston rod of the piston cylinder via a coupling.

[0028] Furthermore, the external electrical control box of the controller is equipped with green, red, and yellow indicator lights, all of which are electrically connected to the controller. These three indicator lights are used to indicate various operating states of the feed pump. For example, a lit green indicator light indicates that the feed pump is in normal operation; a lit red indicator light indicates that the feed pump is stopped or in a faulty state; and a lit yellow indicator light is used to warn of alarm messages such as low oil level and / or high oil temperature in the oil tank.

[0029] On-site operators can identify the operating status of the horizontal feed pump of the filter press by observing the color of the indicator light from a distance, without having to move to the front of the horizontal feed pump, thus reducing labor intensity and improving work efficiency.

[0030] By adopting the above technical solution, this utility model has the following beneficial effects:

[0031] This utility model provides a horizontal feed pump for a filter press. The rod chamber and rodless chamber of the piston cylinder are both conveying working chambers, which work continuously and alternately, greatly improving work efficiency and reducing production costs. Furthermore, by setting the first discharge port at the top and the second discharge port at the top or the end face of one end of the piston cylinder along the axial direction, the entire horizontal feed pump appears slender, greatly reducing the floor space occupied, and facilitating installation, debugging, and maintenance. Attached Figure Description

[0032] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0033] Figure 1 A schematic diagram of the structure of the horizontal feed pump for the filter press provided in this embodiment of the utility model;

[0034] Figure 2 A front view of the horizontal feed pump for a filter press provided in the embodiment;

[0035] Figure 3 A side view of the horizontal feed pump for a filter press provided in an embodiment;

[0036] Figure 4 A schematic diagram of the oil pump and reversing valve;

[0037] Figure 5 This is a schematic diagram of a three-way check valve.

[0038] Figure 6 This is a schematic diagram of the second embodiment of the horizontal feed pump for a filter press provided in the example.

[0039] Figure label:

[0040] 10-Telescopic mechanism; 11-Push rod; 12-Coupling; 13-Oil pump; 14-Reversing valve; 20-Piston cylinder; 21-Rod chamber; 22-Rodless chamber; 23-First discharge port; 24-Second discharge port; 25-First feed port; 26-Second feed port; 27-Piston rod; 31-First discharge check valve; 32-Second discharge check valve; 41-First feed check valve; 42-Second feed check valve; 50-Feed pipeline; 60-Supply pipeline; 70-Valve body; 71-First connection port; 72-Second connection port; 73-Third connection port; 74-Valve disc; 75-Reset spring; 80-Temporary storage tank. Detailed Implementation

[0041] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0042] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] The present invention will be further explained below with reference to specific embodiments.

[0045] It should also be noted that the following specific embodiments or specific implementation methods are a series of optimized settings listed by this utility model to further explain the specific utility model content, and these settings can be combined or used in conjunction with each other.

[0046] For example Figure 1-4 As shown, this embodiment provides a horizontal feed pump for a filter press, comprising: a piston cylinder 20 and a telescopic mechanism 10; the piston cylinder 20 has a first discharge port 23 at the top of the rod chamber 21 and a second discharge port 24 at the top of the rodless chamber 22; alternatively, see [reference needed]. Figure 6 As shown, the second discharge port 24 can also be located on the far end face of the rodless chamber 22 away from the piston rod 27. A first discharge check valve 31 and a second discharge check valve 32 are respectively provided at the first discharge port 23 and the second discharge port 24 to control the unidirectional flow of materials.

[0047] The piston cylinder 20 has a first feed port 25 and a second feed port 26 respectively at the bottom or lower middle part of the rod chamber 21 and the rodless chamber 22; a first feed check valve 41 and a second feed check valve 42 are respectively provided at the first feed port 25 and the second feed port 26, which are used to control the unidirectional flow of material into the rod chamber 21 and the rodless chamber 22; similarly, the second feed check valve 42 can also be provided on the far end face of the rodless chamber 22 away from the piston rod 27.

[0048] The telescopic end 11 of the telescopic mechanism 10 is connected to the piston rod 27 of the piston cylinder 20, and is used to drive the piston 28 in the piston cylinder 20 to move, thereby realizing the alternating operation of the rod chamber 21 and the rodless chamber 22.

[0049] Compared to existing technologies, the extension and retraction processes of the telescopic mechanism 10 in this application can both perform work. The rod chamber 21 and rodless chamber 22 of the piston cylinder 20 are both conveying working chambers, and the two work alternately without interruption, which greatly improves work efficiency and reduces production costs. Furthermore, by setting the first discharge port 23 at the top and the second discharge port 24 at the top or the end face of one axial end of the piston cylinder 20, the entire horizontal feed pump appears slender, greatly reducing the floor space occupied, and facilitating installation, debugging, and maintenance.

[0050] This embodiment also includes a feed pipe 50, which is connected to the first feed port 25 and the second feed port 26, for feeding materials into the piston cylinder 20 in the rod chamber 21 and the rodless chamber 22; it also includes a feed pipe 60, which is connected to the first discharge port 23 and the second discharge port 24, for conveying the materials in the rod chamber 21 and the rodless chamber 22 to the filter press.

[0051] This embodiment also discloses a three-way check valve; see [link / reference] Figure 5 As shown, the three-way check valve includes a three-way valve body 70, which includes a first connection port 71, a second connection port 72, and a third connection port 73. A valve disc 74 is provided at the third connection port 73, and the valve disc 74 cooperates with the valve seat structure at the third connection port 73 to control the unidirectional outflow or inflow of materials.

[0052] Preferably, the three-way check valve is T-shaped and has a main delivery pipeline connecting the first connection port 71 and the second connection port 72, as well as an output branch. One end of the output branch is perpendicularly connected to the main delivery pipeline, and the other end of the output branch is the third connection port 73. The valve disc 74 is located in the output branch.

[0053] Preferably, the valve also includes a return spring 75, with its two ends abutting against the valve body 70 and the valve disc 74 respectively, tending to force the valve disc 74 to close.

[0054] See Figure 5 As shown, in this embodiment, the second discharge check valve 32 is a three-way check valve, and it is connected in series on the feed pipeline 60. The series connection means that the first connection port 71 and the second connection port 72 of the valve body 70 of the three-way check valve are respectively connected to the feed pipelines 60 at both ends, and the third connection port 73 is connected to the second discharge port 24 of the piston cylinder 20 through a pipeline or directly, for controlling the unidirectional flow of material out of the piston cylinder 20.

[0055] This application designs a three-way check valve, thereby realizing the series connection of the first discharge check valve 31 and the second discharge check valve 32, which is simpler and more compact in structure and further saves space occupied by the whole body.

[0056] A temporary storage tank 80 is installed on the feeding pipeline 60 at one end near the main feeding outlet.

[0057] Preferably, the telescopic mechanism 10 is a hydraulic cylinder; see [link / reference] Figure 5 As shown, this embodiment also includes an oil pump 13 and a reversing valve 14. The oil outlet of the oil pump 13 is connected to the inlet of the reversing valve 14, and the two control outlets of the reversing valve 14 are respectively connected to the two chambers of the hydraulic cylinder through oil circuits. The oil inlet of the oil pump 13 is connected to an oil tank (not shown) through an oil circuit; the two chambers of the hydraulic cylinder are also provided with oil return ports (not shown), which are connected to the oil tank through oil return pipelines, and control valves are provided on the oil return pipelines.

[0058] Preferably, a level sensor and a temperature sensor (not shown) are installed inside the oil tank to monitor the level and temperature of the hydraulic oil in the tank in real time.

[0059] This embodiment also includes a controller (not shown), which is connected to the oil pump 13 and the directional valve 14 respectively. The controller controls the oil pump 13 to alternately supply oil to the two chambers of the hydraulic cylinder, thereby extending or retracting the hydraulic cylinder push rod. Furthermore, the controller also needs to coordinate the synchronous operation of the control valve and the directional valve to return excess hydraulic oil from the two chambers of the hydraulic cylinder to the oil tank.

[0060] Preferably, the push rod 11 is connected to the piston rod 27 of the piston cylinder 20 via a coupling 12.

[0061] Furthermore, the external electrical control box of the controller is equipped with green, red, and yellow indicator lights (not shown), all of which are electrically connected to the controller. These three indicator lights are used to indicate various operating states of the feed pump. For example, a lit green indicator light indicates that the feed pump is in normal operation; a lit red indicator light indicates that the feed pump is stopped or in a fault state; and a lit yellow indicator light is used to warn of alarm messages such as low oil level and / or high oil temperature in the oil tank.

[0062] On-site operators can identify the operating status of the horizontal feed pump of the filter press by observing the color of the indicator light from a distance, without having to move to the front of the horizontal feed pump, thus reducing labor intensity and improving work efficiency.

[0063] The rod chamber 21 and rodless chamber 22 of the piston cylinder 20 of this utility model are both conveying working chambers. The two work continuously and alternately, which greatly improves the working efficiency and reduces the production cost. In addition, by setting the first discharge port 23 at the top and the second discharge port 24 at the top or the end face of one end of the piston cylinder 20 along the axial direction, the entire horizontal feed pump appears slender, greatly reducing the floor space occupied, and facilitating installation, debugging and maintenance.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A filter press horizontal feed pump characterized by, include: Piston cylinder and telescopic mechanism; The piston cylinder has a first discharge port at the top of the rod chamber and a second discharge port at the top of the rodless chamber or on the far end face away from the piston rod. A first discharge check valve and a second discharge check valve are respectively provided at the first discharge port and the second discharge port to control the unidirectional flow of materials. The piston cylinder has a first feed port and a second feed port at the bottom or lower middle part of the rod chamber and the rodless chamber, respectively; a first feed check valve and a second feed check valve are respectively provided at the first feed port and the second feed port, which are used to control the unidirectional flow of material into the rod chamber and the rodless chamber, respectively. The telescopic end of the telescopic mechanism is connected to the piston rod of the piston cylinder, which drives the piston in the piston cylinder to move back and forth, thereby realizing the alternating operation of the rod chamber and the rodless chamber.

2. The filter press horizontal feed pump of claim 1, wherein, It also includes a feed pipe, which is connected to the first feed port and the second feed port, for feeding material into the piston cylinder in the rod chamber and the rodless chamber; It also includes a feed pipeline, which is connected to the first and second discharge ports and is used to transport the material in the rod chamber and the rodless chamber to the filter press.

3. The horizontal feed pump for filter presses according to claim 2, characterized in that, The system includes a three-way check valve; the three-way check valve includes a three-way valve body, the valve body including: a first connection port, a second connection port and a third connection port; a valve disc is provided at the third connection port for controlling the unidirectional outflow or inflow of materials.

4. The filter press horizontal feed pump of claim 3, wherein, The three-way check valve is T-shaped and has a main delivery pipeline connecting the first and second connection ports, as well as an output branch. One end of the output branch is perpendicularly connected to the main delivery pipeline, and the other end of the output branch is the third connection port. The valve disc is located inside the output branch.

5. The horizontal feed pump for filter presses according to claim 3, characterized in that, It also includes a return spring, with its two ends abutting against the valve body and the valve disc respectively, tending to force the valve disc to close.

6. The horizontal feed pump for filter presses according to claim 3, characterized in that, At least one of the first discharge check valve and the second discharge check valve is the three-way check valve, and they are connected in series on the feed pipeline.

7. The filter press horizontal feed pump of claim 6, wherein, One of the first discharge check valve and the second discharge check valve is a three-way check valve, which is connected in series on the feed pipeline; the other of the first discharge check valve and the second discharge check valve is located at one end of the feed pipeline, and the other end of the feed pipeline is provided with a main feed outlet.

8. The horizontal feed pump for filter presses according to claim 3, characterized in that, At least one of the first feed check valve and the second feed check valve is the three-way check valve, and they are connected in series on the feed pipeline.

9. The filter press horizontal feed pump of claim 8, wherein, One of the first feed check valve and the second feed check valve is a three-way check valve, which is connected in series on the feed pipeline; the other of the first feed check valve and the second feed check valve is located at one end of the feed pipeline, and the other end of the feed pipeline is provided with a main feed port.

10. The filter press horizontal feed pump of claim 1, wherein, The telescopic mechanism is a hydraulic cylinder; it also includes an oil pump and a reversing valve. The oil outlet of the oil pump is connected to the inlet of the reversing valve, and the two control outlets of the reversing valve are respectively connected to the two chambers of the hydraulic cylinder through oil circuits.

11. The horizontal feed pump for filter presses according to claim 10, characterized in that It also includes a controller, which is connected to the oil pump and the reversing valve respectively, and is used to control the oil pump to alternately supply oil to the two chambers of the hydraulic cylinder to realize the extension or retraction of the hydraulic cylinder push rod.

12. The filter press horizontal feed pump of claim 11, wherein, The external electrical control box of the controller is equipped with green, red and yellow indicator lights, all of which are electrically connected to the controller; the three indicator lights are used to indicate various operating states of the feed pump.

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