Mixing and pumping equipment for sludge with different water contents

Abstract

The utility model relates to the technical field of sludge treatment, in particular to a device for mixing and pumping sludge with different water contents, which comprises a control system, a sludge stirring tank, two groups of sludge input pipeline systems and a sludge output pipeline system, the sludge conveying pipeline system is communicated with the sludge stirring tank and used for conveying sludge with different water contents into the sludge stirring tank, and the sludge output pipeline system is communicated with the sludge stirring tank and used for outputting the sludge stirred and mixed by the sludge stirring tank; the sludge input pipeline system comprises a receiving tank and a sludge pump which are communicated through a pipeline, a first control valve is arranged on the pipeline between the receiving tank and the sludge pump, the sludge pump is communicated with the sludge stirring tank through a pipeline, a first pressure gauge and a first flow meter are arranged on an outlet pipe section of the sludge pump, and a second pressure gauge is arranged on an outlet pipe section of the first flow meter. The first control valve, the first pressure gauge and the first flow meter are all electrically connected with the control system.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge treatment, in particular to a mixing pumping device for sludges with different water contents. Background Art

[0002] During the disposal process, sludge inevitably needs to be transferred between various process sections, and the transfer method generally adopts pipeline pumping, grab bucket and other methods. Pipeline pumping is often the preferred method due to its advantages such as good sealing, convenient transportation and high efficiency. However, sludge pipeline pumping is limited by the moisture content of the sludge: when the moisture content of the sludge is above 70%, its fluidity is better and it can be smoothly transported in the pipeline. However, as the moisture content gradually decreases, the fluidity slowly decreases and the resistance increases accordingly. As the transportation distance increases, the resistance along the way increases, and blockage is prone to occur. In addition, the load on the equipment is large, and the equipment failure rate also increases accordingly. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a mixing pumping device for sludges with different water contents.

[0004] The utility model is realized by the following technical solutions:

[0005] A sludge mixing and pumping device with different moisture contents, comprising a control system, a sludge mixing tank, two sets of sludge input pipeline systems, and a sludge output pipeline system, wherein the two sets of sludge input pipeline systems are both connected to the sludge mixing tank to transport sludge with different moisture contents to the sludge mixing tank, and the sludge output pipeline system is connected to the sludge mixing tank to output the sludge mixed by the sludge mixing tank;

[0006] The sludge input pipeline system includes a receiving tank and a sludge pump connected by a pipeline, a first control valve is arranged on the pipeline between the receiving tanks, the sludge pump is connected to the sludge stirring tank by a pipeline, a first pressure gauge and a first flow meter are arranged on the outlet pipe section of the sludge pump, and the first control valve, the first pressure gauge and the first flow meter are all electrically connected to the control system.

[0007] As a further improvement of the utility model, it also includes a reflux pipe, one end of which is connected to the pipe between the receiving tank and the first control valve, and the other end of which is connected to the pipe between the first pressure gauge or the first flow meter and the sludge mixing tank. A second control valve is arranged on the reflux pipe, and the second control valve is electrically connected to the control system.

[0008] As a further improvement of the present invention, a third control valve is provided on the pipeline between the first pressure gauge or the first flow meter and the sludge stirring tank, and the third control valve is electrically connected to the control system.

[0009] As a further improvement of the utility model, sludge with a moisture content of 60%-70% is placed in the receiving tank in one group of the sludge input pipeline systems, and sludge with a moisture content of 70%-90% is placed in the receiving tank in another group of the sludge input pipeline systems.

[0010] As a further improvement of the utility model, the sludge mixing tank includes a tank body, the tank body is provided with two feed ports for respectively connecting two groups of sludge pumps in the sludge input pipeline system, the tank body is provided with a discharge port for connecting the sludge output pipeline system, an agitator is arranged in the tank body for stirring the sludge, and the top of the agitator passes through the top of the tank body and is transmission-connected to a driving device.

[0011] As a further improvement of the utility model, a liquid level meter is provided on the tank body, and the liquid level meter is electrically connected to the control system.

[0012] As a further improvement of the utility model, the sludge output pipeline system includes a sludge pipeline pump, and the sludge pipeline pump is connected to the discharge port of the sludge mixing tank through a pipeline.

[0013] As a further improvement of the utility model, a second flow meter is provided on the pipeline between the sludge pipeline pump and the sludge stirring tank, and the second flow meter is electrically connected to the control system.

[0014] As a further improvement of the utility model, an emergency shut-off valve is provided on the pipeline between the sludge pipeline pump and the sludge stirring tank and is electrically connected to the control system.

[0015] As a further improvement of the present invention, a sludge filter is provided on the pipeline between the receiving tank and the first control valve.

[0016] The beneficial effects of the utility model are as follows: in the utility model, two groups of sludge input pipelines are provided, wherein the receiving tanks can be used to temporarily store sludge with different moisture contents, that is, one of the receiving tanks temporarily stores sludge with high moisture content, and the other receiving tank temporarily stores sludge with low moisture content, and then the sludge is pumped into the sludge mixing tank by a sludge pump, and the delivery amount of the two groups of sludge is controlled by a control system so that the two groups of sludge are mixed and stirred into sludge with a moisture content of about 70%, thereby making the sludge have good fluidity, and then output through the sludge output pipeline system for pumping. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following is a detailed description of the preferred implementation examples of the present invention with reference to the accompanying drawings to help understand the purpose and advantages of the present invention, wherein:

[0018] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model. DETAILED DESCRIPTION

[0019] The utility model is further described in detail below based on the accompanying drawings and implementation cases.

[0020] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. The words "inside" and "outside" refer to the direction toward or away from the geometric center of a specific component, respectively. They are relative concepts, and therefore may change accordingly according to different locations and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0021] refer to Figure 1 , the utility model embodiment discloses:

[0022] A sludge mixing and pumping device with different moisture contents, comprising a control system, a sludge mixing tank 1, two sets of sludge input pipeline systems, and a sludge output pipeline system, wherein the two sets of sludge input pipeline systems are both connected to the sludge mixing tank 1 to transport sludge with different moisture contents to the sludge mixing tank 1, and the sludge output pipeline system is connected to the sludge mixing tank 1 to output the sludge mixed by the sludge mixing tank 1;

[0023] The sludge input pipeline system includes a receiving tank 2 and a sludge pump 3 connected by a pipeline, a first control valve 4 is arranged on the pipeline between the receiving tank 2 and the receiving tank 2, the sludge pump 3 is connected with the sludge stirring tank 1 by a pipeline, and a first pressure gauge 5 and a first flow meter 6 are arranged on the outlet pipe section of the sludge pump 3, and the first control valve 4, the first pressure gauge 5 and the first flow meter 6 are all electrically connected to the control system; wherein, the control system is specifically a PLC control system, and its structure is well known to those skilled in the art, and can be used to adjust the entire system Control is not described here; specifically, in this embodiment, two groups of sludge input pipeline systems are provided, and the two receiving tanks 2 can be used to temporarily store sludge with different moisture contents, that is, one of the receiving tanks 2 temporarily stores high-moisture-content sludge, and the other receiving tank 2 temporarily stores low-moisture-content sludge, and then the sludge is pumped into the sludge mixing tank 1 by the sludge pump 3, and the pumping amount of the two groups of sludge is controlled by the control system, so that the two groups of sludge are mixed and stirred in the sludge mixing tank 1 into sludge with a moisture content of about 70%, thereby making the sludge have good fluidity, and then output through the sludge output pipeline system for pumping.

[0024] It also includes a reflux pipe 7, one end of which is connected to the pipe between the receiving tank 2 and the first control valve 4, and the other end of which is connected to the pipe between the first pressure gauge 5 or the first flow meter 6 and the sludge mixing tank 1. A second control valve 8 is provided on the reflux pipe 7, and the second control valve 8 is electrically connected to the control system; when

[0025] A third control valve 9 is provided on the pipeline between the first pressure gauge 5 or the first flow meter 6 and the sludge stirring tank 1 , and the third control valve 9 is electrically connected to the control system.

[0026] The receiving tank 2 in one group of the sludge input pipeline systems contains sludge with a moisture content of 60%-70%, and the receiving tank 2 in the other group of the sludge input pipeline systems contains sludge with a moisture content of 70%-90%.

[0027] The sludge mixing tank 1 includes a tank body, which is provided with two feed ports for respectively connecting two groups of sludge pumps 3 in the sludge input pipeline system, and the tank body is provided with a discharge port for connecting the sludge output pipeline system. An agitator 10 is arranged in the tank body for stirring the sludge, and the top of the agitator 10 passes through the top of the tank body and is transmission-connected to a driving device 11.

[0028] The tank body is provided with a liquid level meter 13, and the liquid level meter 13 is electrically connected to the control system. In addition, the tank body is also provided with an alarm, and the alarm is electrically connected to the control system. When the sludge liquid level is too high or too low, an alarm is given to attract the attention of the staff.

[0029] The sludge output pipeline system includes a sludge pipeline pump 14, which is connected to the discharge port of the sludge mixing tank 1 through a pipeline; a second flow meter 15 is provided on the pipeline between the sludge pipeline pump 14 and the sludge mixing tank 1, and the second flow meter 15 is electrically connected to the control system; an emergency shut-off valve 16 (electronic valve) is provided on the pipeline between the sludge pipeline pump 14 and the sludge mixing tank 1, and the emergency shut-off valve 16 is electrically connected to the control system; the mixed sludge in the sludge mixing tank 1 is pumped into the pipeline by the sludge pipeline pump 14.

[0030] In addition, a sludge filter 17 is provided on the pipeline between the receiving tank 2 and the first control valve 4, and the sludge is filtered through the sludge filter 17 to prevent clogging.

[0031] Finally, it should be noted that the above implementation cases are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the above implementation cases, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above implementation cases, or replace some of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the implementation cases of the utility model.

Claims

1. A sludge mixing and pumping device with different water contents, characterized in that: It comprises a control system, a sludge stirring tank (1), two groups of sludge input pipeline systems, and a sludge output pipeline system, wherein the two groups of sludge input pipeline systems are both connected to the sludge stirring tank (1) to transport sludge with different moisture contents into the sludge stirring tank (1), and the sludge output pipeline system is connected to the sludge stirring tank (1) to output the sludge stirred and mixed in the sludge stirring tank (1); The sludge input pipeline system comprises a receiving tank (2) and a sludge pump (3) which are connected via a pipeline, a first control valve (4) is arranged on the pipeline between the receiving tank (2) and the sludge pump (3), the sludge pump (3) is connected to the sludge stirring tank (1) via a pipeline, a first pressure gauge (5) and a first flow meter (6) are arranged on the outlet pipe section of the sludge pump (3), and the first control valve (4), the first pressure gauge (5) and the first flow meter (6) are all electrically connected to the control system.

2. The sludge mixing and pumping equipment with different water contents according to claim 1 is characterized in that: The system further comprises a return pipe (7), one end of which is connected to the pipe between the receiving tank (2) and the first control valve (4), and the other end of which is connected to the pipe between the first pressure gauge (5) or the first flow meter (6) and the sludge stirring tank (1). A second control valve (8) is provided on the return pipe (7), and the second control valve (8) is electrically connected to the control system.

3. The sludge mixing and pumping equipment with different water contents according to claim 2 is characterized in that: A third control valve (9) is provided on the pipeline between the first pressure gauge (5) or the first flow meter (6) and the sludge stirring tank (1), and the third control valve (9) is electrically connected to the control system.

4. The sludge mixing and pumping equipment with different water contents according to claim 1 is characterized in that: The receiving tank (2) in one group of the sludge input pipeline systems contains sludge with a moisture content of 60%-70%, and the receiving tank (2) in the other group of the sludge input pipeline systems contains sludge with a moisture content of 70%-90%.

5. The sludge mixing and pumping equipment with different water contents according to claim 1 is characterized in that: The sludge stirring tank (1) comprises a tank body, the tank body is provided with two feed ports for respectively connecting to two groups of sludge pumps (3) in the sludge input pipeline system, the tank body is provided with a discharge port for connecting to the sludge output pipeline system, the tank body is provided with an agitator (10) for stirring the sludge, the top of the agitator (10) passes through the top of the tank body and is transmission-connected to a driving device (11).

6. The sludge mixing and pumping equipment with different water contents according to claim 5 is characterized in that: The tank body is provided with a liquid level meter (13), and the liquid level meter (13) is electrically connected to the control system.

7. The sludge mixing and pumping equipment with different water contents according to claim 5 is characterized in that: The sludge output pipeline system comprises a sludge pipeline pump (14), and the sludge pipeline pump (14) is connected to the discharge port of the sludge stirring tank (1) through a pipeline.

8. The sludge mixing and pumping equipment with different water contents according to claim 7 is characterized in that: A second flow meter (15) is provided on the pipeline between the sludge pipeline pump (14) and the sludge stirring tank (1), and the second flow meter (15) is electrically connected to the control system.

9. The sludge mixing and pumping equipment with different water contents according to claim 8 is characterized in that: An emergency shut-off valve (16) is provided on the pipeline between the sludge pipeline pump (14) and the sludge stirring tank (1) and is electrically connected to the control system.

10. The sludge mixing and pumping equipment with different water contents according to claim 1 is characterized in that: A sludge filter (17) is provided on the pipeline between the receiving tank (2) and the first control valve (4).

Images