Double-cylinder thick material pump

Abstract

The invention relates to a double-cylinder thick material pump, comprising two conveying cylinders which are arranged adjacent to each other and each guide a hydraulically driven displacement piston; the invention further comprises at least one valve system having a housing with: connection ports arranged adjacent to one another on a connection side for connecting the delivery cylinder; at least one feed port for receiving a thick material on a feed side oriented substantially at right angles to the connection side; at least one discharge port on a discharge side opposite the connection side for discharging the thick material, the valve system comprising a feed valve for controlling the suction of the thick material into the delivery cylinder and a discharge valve for discharging the thick material; the double-cylinder thick material pump further comprises a rack used for containing the shell when the shell is connected with the conveying cylinder. The aim of the invention is to provide an improved double-cylinder thick material pump, the feeding side of the housing can be flexibly arranged during assembly, and simple modification can also be realized in the field of use. According to the invention, the shell can be mounted at at least two mounting positions of the rack.

Description

Technical Field

[0001] This invention relates to a dual-cylinder thickener pump having two delivery cylinders arranged adjacent to each other, each delivery cylinder guiding a hydraulically driven displacement piston; it also includes at least one valve system having a housing having: connection ports arranged adjacent to each other on a connection side for connecting the delivery cylinders; at least one feed port on a feed side oriented substantially perpendicular to the connection side for receiving thickener; and at least one discharge port on a discharge side opposite to the connection side for discharging thickener. The valve system includes feed valves for controlling the intake of thickener in each delivery cylinder and discharge valves for controlling the discharge of thickener from each delivery cylinder; furthermore, the dual-cylinder thickener pump also includes a frame for accommodating the housing when the housing is connected to the delivery cylinders. Background Technology

[0002] For example, patent document EP0562398A1 discloses such a dual-cylinder thick material pump. A disadvantage of the dual-cylinder thick material pump described in this document is that the feed side of the housing used to receive the thick material from the hopper or continuous conveyor must be positioned upwards. Therefore, this dual-cylinder thick material pump cannot be flexibly designed, nor can it be easily shaped into variant products. Summary of the Invention

[0003] Therefore, the objective of this invention is to provide an improved dual-cylinder thick material pump that allows for flexible arrangement of the feed side of the housing during assembly and enables simple modification designs at the application site.

[0004] This task is solved by a dual-cylinder thickener pump having the features described in claim 1.

[0005] Because the housing can be installed in at least two positions within the frame, the orientation of the housing's feed side can be flexibly selected when assembling the dual-cylinder thick material pump. This not only facilitates the creation of modified products but also allows for the determination of the pump's assembly configuration at the application site. This means that dual-cylinder thick material pumps with different assembly configurations can be manufactured using the same components. Customers purchasing this dual-cylinder thick material pump can prepare stock initially and then modify it to suit specific application scenarios after determining the exact installation location for each pump, thereby achieving the optimal feed side orientation based on the environment of the application site.

[0006] Advantageous embodiments and further improvements of the present invention can be derived from the dependent claims. It should be noted that features individually listed in the claims can be combined with each other in any technically reasonable manner to form other embodiments of the present invention.

[0007] According to an advantageous embodiment of the invention, the housing has at least two supporting surfaces arranged symmetrically relative to each other with respect to a first plane passing through the connection port; wherein the frame has at least one abutment surface corresponding to the supporting surfaces, and the housing housed within the frame can be placed with its supporting surface facing the abutment surface at a corresponding mounting position. Since the supporting surfaces are symmetrically arranged with respect to the first plane passing through the connection port, the distance between the connection port and the abutment surface on the frame can remain consistent at each mounting position. This means that when changing the mounting position, the delivery cylinder connected to the connection port does not need to move relative to the frame. Even if the housing rotates within the frame, the position of the connection port remains unchanged when changing the mounting position of the housing because the housing is supported on the abutment surface of the frame.

[0008] A particularly preferred embodiment specifies that the housing has at least one reinforcing rib, which is embedded in at least one corresponding recess on the support surface at at least one mounting position. The reinforcing rib serves to enhance the structural strength of the housing at the support surface. At one of the mounting positions, the reinforcing rib formed on one side of the support surface can advantageously be accommodated within the recess on the support surface. In this way, the reinforcing rib does not cause interference when changing the mounting position.

[0009] A particularly advantageous embodiment of the invention is that at least one discharge port is located within a first plane. This advantageous symmetrical arrangement of the ports relative to the first plane ensures a stable connection between the conveying cylinder and the piping system connected to the twin-cylinder thickener pump, regardless of the housing's mounting position on the frame.

[0010] A particularly advantageous embodiment of the invention specifies that a support surface is formed on a side support bracket of the housing, which is symmetrically arranged on the housing with respect to a second plane extending between the connection ports. The side support bracket allows for very easy symmetrical support of the housing on the frame. Thus, at the installation position, the housing can be reliably fixed and supported laterally.

[0011] In one advantageous embodiment of the invention, the housing is rotated 180° about a horizontal axis relative to the conveying cylinder and the frame at one mounting position compared to another mounting position. By rotating the housing about the horizontal axis, the feed side can be mounted on the frame according to the requirements of the application site.

[0012] One particularly advantageous implementation specifies that, in one installation position, the feed side is located at the top; and in another installation position, the feed side is located at the bottom. The feed side can be optionally positioned upwards or downwards, a feature that facilitates variant designs, thereby allowing the optimal installation configuration of the twin-cylinder thick material pump to be determined at the application site.

[0013] One advantageous design specifies that, in the first installation position, the feed side is arranged on the right side of the connection side in the direction towards the discharge side; and in the second installation position, the feed side is arranged on the left side of the connection side in the direction towards the discharge side. The feed side can be arranged on either the left or right side, a feature that facilitates variant configurations, thereby allowing the optimal installation configuration of the twin-cylinder thick material pump to be determined at the application site.

[0014] According to a preferred embodiment of the present invention, the connecting side forms a first planar housing side surface, which intersects a second planar housing side surface formed by the feeding side with a straight line and the angle of intersection is a right angle. With the aid of the planar housing side surface, the conveying cylinder can be connected to the connecting side at various installation positions, and the feeding side is always arranged at a right angle to the connecting side. Attached Figure Description

[0015] Other features, details, and advantages of the present invention will become apparent from the following description and accompanying drawings, which illustrate embodiments of the invention. In all the drawings, corresponding objects or elements are denoted by the same reference numerals. The drawings are explained below: Figure 1 The diagram shows a dual-cylinder thickener pump according to the invention with its housing in a first mounting position; Figure 2 The invention shows a dual-cylinder thickener pump with its housing in a second mounting position; Figure 3 A detailed view of a dual-cylinder thick material pump with its housing in the first mounting position is shown. Figure 4 A detailed view of the dual-cylinder thick material pump with its housing in the second mounting position is shown. Figure 5 A perspective view of a dual-cylinder thick material pump with its housing in the first mounting position is shown; Figure 6 A perspective view of a dual-cylinder thick material pump with its housing in the second mounting position is shown. Figure 7 A cross-sectional view of a dual-cylinder thick material pump with its housing in the first mounting position is shown. Figure 8 A cross-sectional view of a dual-cylinder thick material pump with its housing in the second mounting position is shown. Figure 9 A detailed view of the twin-cylinder thickener pump with its housing in the first mounting position is shown; and Figure 10 A detailed view of the dual-cylinder thick material pump with its housing in the second mounting position is shown. Detailed Implementation

[0016] Figures 1 to 10In the accompanying drawings, reference numeral 1 denotes the dual-cylinder thickener pump of the present invention. The dual-cylinder thickener pump 1 has two conveying cylinders 2 and 3 arranged horizontally adjacent to each other, each conveying cylinder guiding a hydraulically driven displacement piston 4 or 5. In a variant not shown, the conveying cylinders 2 and 3 may also be arranged vertically adjacent to each other.

[0017] In addition, the dual-cylinder thick material pump 1 also has a valve system 6 for receiving thick material to be conveyed into the conveying cylinders 2 and 3, and discharging the conveyed thick material from the conveying cylinders 2 and 3. The valve system 6 has a housing 7 with connection ports 9 and 10 arranged adjacent to each other on the connection side 8 for connecting the conveying cylinders 2 and 3. Two inlet ports 12 and 13 are provided on the feed side 11 of the housing 7, which is oriented approximately at right angles to the connection side 8, for receiving thick material. Two outlet ports 15 and 16 are provided on the discharge side 14 of the housing 7, opposite to the connection side 8, for discharging thick material. The valve system 6 has inlet valves 17 and 18 for controlling the intake of thick material in each conveying cylinder 2 and 3, and outlet valves 19 and 20 for controlling the discharge of thick material from each conveying cylinder 2 and 3.

[0018] The housing 7 can be installed at two mounting positions 22 and 23 within the frame 21, wherein the first mounting position 22 is shown in Figure 1 , Figure 3 , Figure 5 , Figure 7 and Figure 9 In the middle, the second installation position 23 is shown. Figure 2 , Figure 4 , Figure 6 , Figure 8 and Figure 10 In the middle. These two mounting positions 22 and 23 allow for flexible selection of the orientation of the feed side 11 of the housing 7 when assembling the twin-cylinder thick material pump 1. Therefore, Figures 1 to 10 Two different assembly configurations are shown, allowing the twin-cylinder thick material pump 1 to be flexibly assembled in either configuration at the application site. In the first mounting position 22, the feed side 11 is located at the top; in the second mounting position 23, the feed side 11 is located at the bottom. The feed side 11 can be configured to face upwards or downwards, a feature that facilitates the creation of variant products, allowing the optimal assembly configuration of the twin-cylinder thick material pump 1 to be determined at the application site. In the second mounting position 23, compared to the first mounting position 22, the housing 7 of the twin-cylinder thick material pump 1 is rotated 180° about a horizontal axis relative to the conveying cylinders 2 and 3 and the frame 21. By rotating the housing 7 about the horizontal axis, the feed side 11 can be mounted on the frame 21 according to the requirements of the installation site. Other mounting configurations (not shown) can also be achieved using a suitable frame: in the first mounting position, the feed side 11 is arranged on the right side along the direction from the connecting side 8 towards the discharge side 14; in the second mounting position, the feed side 11 is arranged on the left side along the direction from the connecting side 8 towards the discharge side 14. Specifically, from... Figure 3 and Figure 4 As can be clearly seen, the connecting side 8 forms the side of the first planar shell, and the side of the first planar shell intersects the side of the second planar shell formed by the feeding side 11 with a straight line and the angle of intersection is a right angle.

[0019] Especially from Figure 7 and Figure 8 As can be clearly seen, the dual-cylinder thick material pump 1 has two supporting surfaces 24 and 25 on the housing 7, which are symmetrically arranged with respect to the first horizontal plane 26 passing through the connection ports 9 and 10. In the illustrated embodiment, each of the supporting surfaces 24 and 25 is composed of partial surfaces. These partial surfaces of the supporting surfaces 24 and 25 are all located within a supporting plane of the supporting surfaces 24 and 25, which is parallel to the first plane 26. The distance between the supporting plane of the supporting surfaces 24 and 25 and the first plane 26 is equal. The frame 21 has a support surface 28 corresponding to the supporting surfaces 24 and 25. The housing 7, which is housed within the frame 21 on the support surface 28, can be placed with its supporting surfaces 24 and 25 facing the support surface 28 at the corresponding installation positions 22 and 23. Since the supporting surfaces 24 and 25 are symmetrically arranged with respect to the first plane 26 passing through the connection ports 9 and 10, the distance between the connection ports 9 and 10 and the support surface 28 on the frame 21 can be kept consistent at each installation position 22 and 23. This means that when changing the installation position, the conveying cylinders 2 and 3 connected to the connection ports 9 and 10 do not need to move relative to the frame 21. Since the housing 7 is supported on the support surface of the frame 21, even if the housing 7 rotates within the frame 21, the positions of the connection ports 9 and 10 remain unchanged when changing the installation positions 22 and 23 of the housing 7. The support surfaces 24 and 25 are preferably formed on the side support brackets 33 and 34 of the housing 7. The side support brackets 33 and 34 are symmetrically arranged on the housing 7 with respect to the second vertical plane 35 extending between the discharge ports 15 and 16. Symmetrical support of the housing 7 on the frame 21 can be easily achieved through the side support brackets 33 and 34. In this way, the housing 7 can be reliably laterally installed at the installation positions 22 and 23.

[0020] from Figure 7 and Figure 8 As can be seen in the dual-cylinder thick material pump 1 shown, the discharge ports 15 and 16 and the connection ports 9 and 10 are all located within the first plane 26. The symmetrical arrangement of ports 9, 10, 15, and 16 relative to the first plane 26 and the second plane 35 ensures that the conveying cylinders 2 and 3 and the piping system (not shown) connected to the dual-cylinder thick material pump 1 can be connected regardless of the installation position 22 or 23 of the housing 7 on the frame 21.

[0021] Figure 9 and Figure 10As shown, the housing 7 is provided with reinforcing ribs 29 and 30. The reinforcing ribs 29 and 30 are used to enhance the structural strength of the housing 7 at the supporting surfaces 24 and 25. At the second mounting position 23, one of the reinforcing ribs 29 and 30 is embedded in one of the corresponding recesses 31 and 32 of the support surface 28. At the first mounting position 22, the recesses do not receive the reinforcing ribs 29 and 30 because these reinforcing ribs are only provided on one side of the support brackets 33 and 34 of the housing 7.

[0022] List of reference numerals 1. Dual-cylinder thick material pump 2 First conveying cylinder 3 Second conveying cylinder 4 First Shifting Piston 5 Second shifting piston 6 Valve System 7. Casing 8. Connecting side 9 First connection port 10 Second connection port 11 Feed side 12 First feed port 13 Second feed port 14 Discharge side 15 First discharge port 16 Second discharge port 17 First feed valve 18 Second feed valve 19 First discharge valve 20 Second discharge valve 21 racks 22 First installation position 23 Second installation position 24 First Support Surface 25 Second support surface 26 First plane 28 supports on the surface 29 First reinforcing rib 30 Second reinforcing rib 31 First recess 32 Second recess 33 First support bracket 34 Second support bracket 35 Second plane

Claims

1. A dual-cylinder thick material pump (1), comprising: - Two conveying cylinders (2, 3) are arranged adjacent to each other, each conveying cylinder guides a hydraulically driven displacement piston (4, 5); - At least one valve system (6) having a housing (7) having: connection ports (9, 10) arranged adjacent to each other on the connection side (8) for connecting the conveying cylinders (2, 3); at least one feed port (12, 13) on the feed side (11) oriented approximately perpendicular to the connection side (8) for receiving viscous material; and at least one discharge port (15, 16) on the discharge side (14) opposite to the connection side (8) for discharging viscous material, wherein the valve system (6) includes feed valves (17, 18) for controlling the intake of viscous material in each conveying cylinder (2, 3) and discharge valves (19, 20) for controlling the discharge of viscous material in each conveying cylinder (2, 3); and - A frame (21) for receiving the housing (7) when the housing (7) is connected to the conveying cylinders (2, 3). The housing (7) is characterized in that it can be installed at at least two mounting positions (22, 23) on the frame (21).

2. Double-cylinder thickened material pump (1) according to claim 1, characterized in that The housing (7) is provided with at least two support surfaces (24, 25), which are symmetrically arranged relative to each other with respect to a first plane (26) passing through the connection port (9, 10). The frame (21) has at least one abutment surface (28) corresponding to the support surfaces (24, 25). The housing (7) housed in the frame (21) on the at least one abutment surface is placed with its support surface (24, 25) facing the abutment surface (28) at the corresponding mounting position (22, 23).

3. The dual-cylinder thickener pump (1) according to claim 2, characterized in that, The housing (7) has at least one reinforcing rib (29, 30), which is embedded in at least one corresponding recess (31, 32) of the support surface (28) in at least one of the mounting positions (22, 23).

4. The dual-cylinder thickener pump (1) according to claim 2 or 3, characterized in that, At least one discharge port (15, 16) is located within the first plane (26).

5. The dual-cylinder thickener pump (1) according to any one of claims 2 to 4, characterized in that, The support surfaces (24, 25) are formed on the side support brackets (33, 34) of the housing (7), which are arranged symmetrically on the housing (7) with respect to a second plane (35) extending between the discharge ports (15, 16).

6. The dual-cylinder thickener pump (1) according to any one of the preceding claims, characterized in that, The housing (7) is rotated 180° about the horizontal axis relative to the conveying cylinder (2, 3) and the frame (21) at one mounting position (22, 23) compared to the other mounting position.

7. The dual-cylinder thick material pump (1) according to any one of the preceding claims, characterized in that, The feed side (11) is located at the top in one mounting position (22) and at the bottom in another mounting position (23).

8. The dual-cylinder thick material pump (1) according to any one of the preceding claims, characterized in that, The feed side (11) is arranged on the right side of the connecting side (8) in the direction toward the discharge side (14) at the first installation position, and on the left side of the connecting side (8) in the direction toward the discharge side (14) at the second installation position.

9. The dual-cylinder thick material pump (1) according to any one of the preceding claims, characterized in that, The connecting side (8) forms a first planar shell side surface, and the first planar shell side surface and the second planar shell side surface formed by the feeding side (11) have a straight line intersection line and the intersection angle is a right angle.

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