Coal water slurry conveying system

Abstract

The utility model provides a coal water slurry conveying diaphragm pump cylinder clamping prevention device and a coal water slurry conveying system.The coal water slurry conveying diaphragm pump cylinder clamping prevention device comprises a tank body, a grid plate, an input pipe opening and an output pipe opening; the grid plate is fixedly arranged in the tank body and divides the interior of the tank body into a first space and a second space; the input pipe orifice is communicated with the first space of the tank body; and the output pipe orifice is communicated with the second space of the tank body. According to the cylinder clamping prevention device of the water-coal-slurry conveying diaphragm pump and the water-coal-slurry conveying system, the problem that due to foreign matter such as large-particle materials and steel bars and iron sheets in water-coal-slurry, the amount of the diaphragm pump is poor due to clamping of inlet and outlet one-way valves or the diaphragm is scratched and damaged can be solved.

Description

Technical Field

[0001] The present application relates to the field of diaphragm pumps for conveying coal-water slurry, and in particular to a diaphragm pump for conveying coal-water slurry to prevent cylinder sticking and a diaphragm pump for conveying coal-water slurry and a system for conveying coal-water slurry. Background Art

[0002] The diaphragm pump for conveying coal-water slurry is a special pump equipment specially used for conveying coal-water slurry. Its main feature is that it adopts a diaphragm structure. The crankshaft connecting rod mechanism is driven by an electric motor to make the diaphragm reciprocate in the pump body. The forward and backward movement of the diaphragm forms negative pressure and positive pressure, thereby sucking in and discharging the coal-water slurry. Due to the existence of the diaphragm, the coal-water slurry only contacts the diaphragm but not directly contacts other moving parts of the pump, which can effectively prevent the highly abrasive and viscous medium of coal-water slurry from causing serious wear on the internal parts of the pump.

[0003] At present, in the chemical production process, the commonly used gasification water-coal slurry conveying pumps are mainly double-cylinder double-acting and three-cylinder single-acting diaphragm pumps. However, when the existing diaphragm pumps are damaged in the rod mill drum screen and the steel rod filling volume is insufficient, they cannot be fully ground, resulting in a large amount of large-particle materials entering the diaphragm pump, causing the water-coal slurry conveying diaphragm pump to frequently get stuck due to the one-way valve seat, wear and leakage of the sealing surface, etc., resulting in insufficient discharge; in addition, the steel rods inside the mill are worn for a long time, and a large amount of iron sheets enter the water-coal slurry conveying diaphragm pump, which will also cause equipment failures such as diaphragm scratches and damage. Other debris will also enter the inlet pipeline of the water-coal slurry conveying diaphragm pump, causing pipeline blockage and poor discharge of the diaphragm pump. As a result, the maintenance workload of the water-coal slurry conveying diaphragm pump is increased, and it is impossible to resume operation in a short time, which has a great impact on the continuous and stable operation of the production system, thereby increasing production costs. Utility Model Content

[0004] In response to the above problems, the present application provides a water-coal slurry conveying diaphragm pump anti-stuck cylinder device and a water-coal slurry conveying system, which can solve the problem of diaphragm pump failure due to sticking of inlet and outlet check valves or scratches and damage of the diaphragm caused by foreign objects such as large particles, steel bars and iron sheets in the water-coal slurry.

[0005] To achieve the purpose of this application, this application provides the following technical solutions:

[0006] In a first aspect, the present application provides a device for preventing a water-coal slurry conveying diaphragm pump from being stuck, comprising: a tank body, a grid plate, an input pipe port, and an output pipe port;

[0007] The grid plate is fixedly arranged inside the tank body to divide the inside of the tank body into a first space and a second space;

[0008] The input pipe opening is communicated with the first space of the tank body; the output pipe opening is communicated with the second space of the tank body.

[0009] In a possible implementation, the inner wall of the tank body has a grid plate slot, and the grid plate is detachably mounted inside the tank body through the grid plate slot.

[0010] In a possible implementation, the anti-cylinder-stuck device for the water-coal slurry conveying diaphragm pump further includes: a flushing pipe port and a sewage discharge pipe port;

[0011] The flushing pipe opening is communicated with the interior of the tank body, and the sewage discharge pipe opening is communicated with the lower part of the first space of the tank body.

[0012] In a possible implementation, the anti-cylinder-stuck device for the water-coal slurry conveying diaphragm pump further includes: a tank cover, which is fixedly arranged on the top of the tank body.

[0013] In a possible implementation manner, the top surface of the tank cover has a handle.

[0014] In a second aspect, the present application provides a water-coal slurry conveying system, comprising: a water-coal slurry storage tank, a diaphragm pump and the above-mentioned anti-cylinder sticking device of the water-coal slurry conveying diaphragm pump;

[0015] The output end of the water-coal slurry storage tank is connected to the input pipe opening of the anti-cylinder-stuck device of the water-coal slurry delivery diaphragm pump through a first pipeline;

[0016] The input end of the diaphragm pump is connected to the output pipe opening of the anti-stuck cylinder device of the water-coal slurry conveying diaphragm pump through a second pipeline, and the output end of the diaphragm pump is connected to the output pipeline.

[0017] In a possible implementation, the water-coal slurry conveying diaphragm pump anti-cylinder sticking system also includes: a cleaning pipeline; the cleaning pipeline is connected to an end of the first pipeline close to the water-coal slurry storage tank; the cleaning pipeline is also connected to the flushing pipe port of the water-coal slurry conveying diaphragm pump anti-cylinder sticking device.

[0018] In a possible implementation, the anti-stuck cylinder system of the water-coal slurry conveying diaphragm pump also includes: multiple sewage pipelines and a sewage collection module; the cleaning pipeline is connected to the sewage collection module through a first sewage pipeline, the sewage pipe port of the water-coal slurry conveying diaphragm pump anti-stuck cylinder device is connected to the sewage collection module through a second sewage pipeline, and the second pipeline is connected to the sewage collection module through a third sewage pipeline.

[0019] In a possible implementation, the sewage collection module is any one or more of a sewage pool, an accident pool, and a sewage pipe grid.

[0020] Beneficial effects:

[0021] The anti-cylinder sticking device and the water-coal slurry conveying system of the water-coal slurry conveying diaphragm pump provided by the present application can solve the problems of cylinder sticking and insufficient punching caused by large particles of foreign matter entering the water-coal slurry conveying diaphragm pump, thereby ensuring the long-term stable operation of the water-coal slurry conveying system in production; and, preventing steel bars and iron sheets from entering the water-coal slurry conveying diaphragm pump, reduces the damage rate of the diaphragm, reduces the maintenance frequency of the diaphragm pump, and at the same time reduces the loss of raw materials, saves costs while also reducing pollution to the mill plant environment, truly achieving the goals of energy saving, efficiency improvement, and cleanliness and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation to the present application.

[0023] Figure 1 A schematic diagram of the structure of a device for preventing a water-coal slurry conveying diaphragm pump from being stuck provided in an embodiment of the present application;

[0024] Figure 2 A schematic structural diagram of a water-coal slurry conveying system provided in an embodiment of the present application.

[0025] Figure markings: 1-tank body; 2-tank cover; 3-handle; 4-grid plate slot; 5-grid plate; 6-flushing pipe outlet; 7-input pipe outlet; 8-output pipe outlet; 9-drainage pipe outlet; 21-water-coal slurry storage tank; 22-cleaning pipeline; 23-anti-cylinder jamming device of water-coal slurry conveying diaphragm pump; 24-diaphragm pump; 25-output pipeline; 26-sewage collection module. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of this application, unless otherwise specified, "plurality" means two or more.

[0028] Example 1

[0029] Figure 1A water-coal slurry delivery diaphragm pump anti-stuck cylinder device provided in an embodiment of the present application comprises: a tank body 1, a grid plate 5, an input pipe port 7 and an output pipe port 8;

[0030] The grid plate 5 is fixedly arranged inside the tank body 1 to divide the inside of the tank body 1 into a first space and a second space;

[0031] The input pipe opening 7 is communicated with the first space of the tank body 1 ; the output pipe opening 8 is communicated with the second space of the tank body 1 .

[0032] Optionally, one end of the input pipe opening 7 and the output pipe opening 8 is a flange structure and the other end is welded to the outer wall of the tank body 1 .

[0033] Optionally, the grid plate 5 is made of corrosion-resistant metal material, and the spacing between the middle grid bars is less than 5 mm.

[0034] In a possible implementation manner, the inner wall of the tank body 1 has a grid plate slot 4 , and the grid plate 5 is detachably mounted inside the tank body 1 through the grid plate slot 4 .

[0035] Optionally, both the inner wall and the bottom surface of the tank body 1 are provided with a connected grid plate slot 4 for engaging a grid plate 5 to separate the interior of the tank body 1 into a first space and a second space.

[0036] In a possible implementation manner, the anti-stuck cylinder device of the water-coal slurry conveying diaphragm pump further includes: a flushing pipe port 6 and a sewage pipe port 9;

[0037] The flushing pipe opening 6 is connected to the interior of the tank body 1 , and the sewage discharge pipe opening 9 is connected to the lower part of the first space of the tank body 1 .

[0038] Optionally, the sewage outlet 9 is located at the bottom of the tank body 1 , so as to facilitate the discharge of large coal particles and steel rods and iron sheets inside the tank body 1 from the sewage outlet 9 .

[0039] In a possible implementation manner, the anti-cylinder-stuck device for the water-coal slurry conveying diaphragm pump further includes: a tank cover 2 , wherein the tank cover 2 is fixedly disposed on the top of the tank body 1 .

[0040] Optionally, the tank cover 2 is fixedly connected to the top of the tank body 1 by bolts.

[0041] In a possible implementation manner, the top surface of the tank cover 2 has a handle 3 to facilitate removal of the tank cover.

[0042] Example 2

[0043] Figure 2A water-coal slurry conveying system provided in an embodiment of the present application comprises: a water-coal slurry storage tank 21, a diaphragm pump 24 and the above-mentioned water-coal slurry conveying diaphragm pump anti-cylinder jamming device 23;

[0044] The output end of the water-coal slurry storage tank 21 is connected to the input pipe port 7 of the water-coal slurry delivery diaphragm pump anti-cylinder device 23 through a first pipeline;

[0045] The input end of the diaphragm pump 24 is connected to the output pipe port 8 of the water-coal slurry conveying diaphragm pump anti-cylinder device 23 through a second pipeline, and the output end of the diaphragm pump 24 is connected to the output pipeline 25 .

[0046] In a possible embodiment, the water-coal slurry conveying diaphragm pump anti-cylinder sticking system also includes: a cleaning pipeline 22; the cleaning pipeline 22 is connected to one end of the first pipeline close to the water-coal slurry storage tank 21; the cleaning pipeline 22 is also connected to the flushing pipe port 6 of the water-coal slurry conveying diaphragm pump anti-cylinder sticking device 23.

[0047] Optionally, the branch connecting the cleaning pipeline 22 and one end of the first pipeline close to the water-coal slurry storage tank 21 has a valve, and the branch connecting the cleaning pipeline 22 and the flushing pipe port 6 of the water-coal slurry conveying diaphragm pump anti-stuck cylinder device 23 also has a valve.

[0048] In a possible embodiment, the water-coal slurry conveying diaphragm pump anti-stuck cylinder system also includes: multiple sewage pipelines and a sewage collection module 26; the cleaning pipeline 22 is connected to the sewage collection module 26 through a first sewage pipeline, the sewage pipe port 9 of the water-coal slurry conveying diaphragm pump anti-stuck cylinder device 23 is connected to the sewage collection module 26 through a second sewage pipeline, and the second pipeline is connected to the sewage collection module 26 through a third sewage pipeline.

[0049] Optionally, each sewage line has a valve.

[0050] Optionally, the sewage collection module 26 may be any device, pipeline or equipment having a collection function.

[0051] In a possible implementation, the sewage collection module 26 is any one or more of a sewage pool, an accident pool, and a sewage pipe grid.

[0052] Working principle:

[0053] The water-coal slurry storage tank continuously transports water-coal slurry, and the water-coal slurry enters the first space in the tank body 1 of the anti-stuck cylinder device of the water-coal slurry conveying diaphragm pump through the input pipe port 7, is filtered through the grid plate 5, and large particles of impurities are blocked in the first space. The water-coal slurry without large particles of impurities enters the second space and flows into the diaphragm pump 24 through the output pipe port 8.

[0054] When there are too many large particles of foreign matter accumulated in the first space in the tank body 1 or when regular cleaning is required, the delivery of the water-coal slurry is turned off, the flushing water is turned on, and the connecting pipes of each section and the inside of the tank body 1 are cleaned through the cleaning pipeline 22, and the sewage is discharged to the collection device for further recycling by opening the valve on the sewage pipeline.

[0055] When the grid plate 5 is damaged, it only needs to be disassembled and replaced.

[0056] In the several embodiments provided in the present application, it should be understood that the disclosed water-coal slurry conveying system, module and method can be implemented in other ways. For example, the module embodiments described above are only schematic, for example, the division of units is only a logical function division, and there may be other division methods in actual implementation, for example, multiple units or components can be combined or integrated into another water-coal slurry conveying system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, modules or units, which can be electrical, mechanical or other forms.

[0057] The above embodiments are only used to illustrate the technical solution of the present application, but not to limit it. The present application is not limited to the exact structure described above and illustrated in the accompanying drawings, and it cannot be determined that the specific implementation of the present application is limited to these descriptions. For ordinary technicians in the technical field to which the present application belongs, various changes and modifications made without departing from the concept of the present application should be deemed to belong to the protection scope of the present application.

Claims

1. A water-coal slurry conveying system, characterized in that: include: A coal-water slurry storage tank (21), a diaphragm pump (24) and a coal-water slurry conveying diaphragm pump anti-cylinder jamming device (23); The output end of the water-coal slurry storage tank (21) is connected to the input pipe opening (7) of the anti-cylinder-stuck device (23) of the water-coal slurry delivery diaphragm pump through a first pipeline; The input end of the diaphragm pump (24) is connected to the output pipe opening (8) of the water-coal slurry conveying diaphragm pump anti-cylinder device (23) through a second pipeline, and the output end of the diaphragm pump (24) is connected to the output pipeline (25); The anti-blocking cylinder device (23) of the water-coal slurry conveying diaphragm pump comprises: a tank body (1), a grid plate (5), an input pipe opening (7) and an output pipe opening (8); The grid plate (5) is fixedly arranged inside the tank body (1) to divide the inside of the tank body (1) into a first space and a second space; The input pipe opening (7) is in communication with the first space of the tank body (1); and the output pipe opening (8) is in communication with the second space of the tank body (1).

2. The water-coal slurry conveying system according to claim 1, characterized in that: The inner wall of the tank body (1) is provided with a grid plate slot (4), and the grid plate (5) is detachably mounted inside the tank body (1) via the grid plate slot (4).

3. The water-coal slurry conveying system according to claim 1, characterized in that: Also includes: Flushing pipe opening (6) and sewage pipe opening (9); The flushing pipe opening (6) is connected to the interior of the tank body (1), and the sewage discharge pipe opening (9) is connected to the lower part of the first space of the tank body (1).

4. The coal water slurry conveying system according to claim 1, characterized in that: Also includes: A tank cover (2), wherein the tank cover (2) is fixedly arranged on the top of the tank body (1).

5. The water-coal slurry conveying system according to claim 4, characterized in that: The top surface of the tank cover (2) is provided with a handle (3).

6. The coal water slurry conveying system according to claim 1, characterized in that: It also comprises: a cleaning pipeline (22); the cleaning pipeline (22) is connected to one end of the first pipeline close to the water-coal slurry storage tank (21); the cleaning pipeline (22) is also connected to the flushing pipe port (6) of the anti-stuck cylinder device (23) of the water-coal slurry conveying diaphragm pump.

7. The coal water slurry conveying system according to claim 6, characterized in that: Also includes: A plurality of sewage pipelines are connected to the sewage collection module (26); the cleaning pipeline (22) is connected to the sewage collection module (26) via a first sewage pipeline, the sewage pipe port (9) of the water-coal slurry conveying diaphragm pump anti-cylinder sticking device (23) is connected to the sewage collection module (26) via a second sewage pipeline, and the second pipeline is connected to the sewage collection module (26) via a third sewage pipeline.

8. The coal water slurry conveying system according to claim 7, characterized in that: The sewage collection module (26) is any one or more of a sewage pool, an accident pool, and a sewage pipe grid.

Images