Precipitation oil removal device

Abstract

The utility model belongs to the field of kitchen sewage treatment equipment, and relates to a precipitation oil removal device, which is mounted at the front end of an MVR (mechanical vapor recompression) evaporation system, is mainly used for treating supplied materials of the MVR evaporation system and further reducing the oil content and impurity content in the supplied materials, has the advantages of simple structure, convenience in mounting, easiness in operation, stability in operation and the like, is convenient and flexible to use, and is suitable for popularization and application. The performance is stable, the effect is obvious, and the market prospect is wide.

Description

Technical Field

[0001] The utility model belongs to the field of kitchen sewage treatment equipment and relates to a sedimentation and oil removal device. Background Art

[0002] When the MVR evaporation system is applied to the treatment of food waste water, the condensed water produced by evaporation has the advantages of low conductivity, high CN ratio and good biodegradability, which can effectively prevent the high salt content of food waste from impacting the biochemical system. At the same time, the waste heat of the condensed water can be used for preheating of the front-end process materials, further reducing the heat energy consumption, making the MVR evaporation system have great development prospects in food waste treatment.

[0003] However, it is found in actual applications that if the feed of the MVR evaporation system contains more solutes and precipitates, scaling is likely to occur inside the evaporator during the evaporation process, resulting in a decrease in the heat transfer efficiency of the evaporator and even blockage of the pipeline, seriously affecting the operation of the evaporation system. Therefore, higher requirements are placed on the oil content and impurity content of the feed. Summary of the invention

[0004] In view of the above problems, the purpose of the utility model is to provide a precipitation oil removal device, which is installed at the front end of the MVR evaporation system and is mainly used to process the incoming materials of the MVR evaporation system to further reduce the oil content and impurity content in the incoming materials.

[0005] The specific technical solution adopted by the utility model to achieve the above purpose is: a sedimentation oil removal device, including a main body, a feed inlet, an air inlet, a discharge port, an oil discharge port and a mud discharge port.

[0006] As a further optimization of the above scheme, the main body 1 is composed of a water inlet area 14, a sludge sedimentation area 13, a sludge storage area 17, a clarification area 12, an oil absorption area 11 and a water outlet area 15, and the feed port 5, the air inlet 4, the discharge port 3, the oil discharge port 2 and the sludge discharge port 6 are arranged on the main body 1.

[0007] As a further optimization of the above scheme, the air-water distributor 10 is arranged in the water inlet area 14, the sludge sedimentation area 13 is provided with a sludge sedimentation inclined pipe 9, the oil absorption area 11 is provided with an oil absorption filter cotton 8, the water outlet area 15 is provided with a water outlet triangular weir 7, the clarification area 12 is arranged between the sludge sedimentation area 13 and the oil absorption area 11, and the sludge storage area 17 is arranged at the lower part of the main body 1.

[0008] As a further optimization of the above scheme, the feed port 5, the air inlet 4 and the air-water distributor 10 are interconnected, and the discharge port 3, the oil discharge port 2 and the water outlet triangular weir 7 are interconnected.

[0009] As a further optimization of the above solution, the oil absorption filter cotton 8 is replaceable, and the distribution hole 16 of the air-water distributor 10 can be adjusted in size.

[0010] The beneficial effects of the utility model are as follows: the sedimentation and oil removal device disclosed by the utility model can perform preliminary sludge sedimentation through the sludge sedimentation inclined tube, and further perform sludge filtration and oil molecule adsorption through the oil absorption filter cotton. The arranged air-water distributor can evenly distribute compressed air and feed. It has the advantages of simple structure, convenient installation, easy operation, stable operation, etc. It is convenient and flexible to use, has stable performance and remarkable effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the utility model;

[0012] Figure 2 It is a front view of the utility model;

[0013] Figure 3 It is a left view of the utility model;

[0014] Figure 4 It is a top view of the utility model;

[0015] Figure 5 The utility model is a cross-sectional view Figure 1 ;

[0016] Figure 6 The utility model is a cross-sectional view Figure 2 ;

[0017] Figure 7 The utility model is a cross-sectional view Figure 3 ;

[0018] Figure 8 It is a component diagram of the utility model;

[0019] Fig. 9 This is a schematic diagram of the combined use and installation of the utility model Figure 1 ;

[0020] Fig.10 This is a schematic diagram of the combined use and installation of the utility model Figure 2 ;

[0021] Fig.11 This is a schematic diagram of the combined use and installation of the utility model Figure 3 .

[0022] Reference numerals

[0023] In the figure: 1. Main body; 2. Oil discharge port; 3. Discharge port; 4. Air inlet; 5. Feed port; 6. Mud discharge port; 7. Water outlet triangular weir; 8. Oil suction filter cotton; 9. Sludge sedimentation inclined pipe; 10. Air-water distributor; 11. Oil suction area; 12. Clarification area; 13. Sludge sedimentation area; 14. Water inlet area; 15. Water outlet area; 16. Distribution hole; 17. Sludge storage area; 101. Combination use main body A; 102. Oil discharge port valve A; 103. Discharge port valve A; 104, air inlet valve A; 105, feed port valve A; 106, mud discharge port valve A; 201, combined use body B; 202, oil discharge port valve B; 203, discharge port valve B; 204, air inlet valve B; 205, feed port valve B; 206, mud discharge port valve B; 301, discharge pipe; 302, oil discharge pipe; 303, feed pipe; 304, air inlet pipe; 305, mud discharge pipe. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Embodiment: The utility model can be a single-unit independent operation mode or a multiple-unit combined operation mode, but it must go through the cyclic operation of three working processes, namely sedimentation filtration, mud discharge and backwashing and oil discharge, to ensure the stable operation and reliable effect of the utility model. The working principle of the utility model will be explained below through a single-unit working mode and a two-unit combined working mode.

[0026] Example 1 Single-unit working mode, such as Figure 1-Figure 8 As shown:

[0027] 1. Firmly connect the oil outlet 2, material outlet 3, air inlet 4, material inlet 5, and mud outlet 6 of the main body 1 with external pipes and valves, and make preparations;

[0028] 2. During sedimentation and filtration, the discharge port 3 and the feed port 5 are opened, the oil discharge port 2, the air inlet 4 and the sludge discharge port 6 are closed, the raw water enters the air-water distributor 10 of the main body 1 through the feed port 5 to slow down the flow rate and evenly distribute it to the water inlet area 14, the raw water goes up to the sludge sedimentation inclined pipe 9 of the sludge sedimentation area 13 for preliminary sludge separation and sedimentation, the separated sludge is settled to the sludge storage area 17, the raw water continues to go up through the clarification area 12 to the oil absorption area 11, after further sludge filtration and oil molecule adsorption by the oil absorption filter cotton 8, it flows into the water discharge area 15, and flows out of the discharge port 3 evenly through the water outlet triangular weir 7;

[0029] 3. When discharging sludge, under the above-mentioned sedimentation and filtration working state, open the sludge discharge port 6 to discharge the sludge in the sludge storage area 17 until the sludge is completely discharged, close the sludge discharge port 6, and resume the sedimentation and filtration working state;

[0030] 4. When backwashing and draining oil, under the above-mentioned sedimentation and filtration working state, close the discharge port 3, open the air inlet 4 and the oil discharge port 2, and the compressed air enters the air-water distributor 10 from the air inlet 4 for uniform distribution. The sludge adsorbed on the sludge sedimentation inclined tube 9 is separated by the floating of small bubbles, and the oil molecules in the oil-absorbing filter cotton 8 are squeezed out and floated to the water outlet area 15, and flow out of the oil discharge port 2 through the water outlet triangular weir 7 until the oil molecules are discharged completely, close the air inlet 4 and the oil discharge port 2, open the discharge port 3, and restore the sedimentation and filtration working state.

[0031] Embodiment 2 Two units are used in combination in working mode, such as Figure 1-Figure 11 shown.

[0032] Use pipe fittings and valves to connect the corresponding parts of the combined use body A 101 and the combined use body B 201, and make preparations, including:

[0033] 1. Install the oil discharge port valve A 102 on the oil discharge port 2 of the combined use body A 101, install the oil discharge port valve B 202 on the oil discharge port 2 of the combined use body B 201, and connect the oil discharge port valve A 102, the oil discharge port valve B 202 and the external oil discharge pipeline together with the pipeline 301;

[0034] 2. Install the discharge port valve A 103 on the discharge port 3 of the combined use body A 101, install the discharge port valve B203 on the discharge port 3 of the combined use body B 201, and connect the discharge port valve A 103, the discharge port valve B203 and the external discharge pipe together with the pipe 302;

[0035] 3. Install the air inlet valve A 104 on the air inlet 4 of the combined body A 101, install the air inlet valve B 204 on the air inlet 4 of the combined body B 201, and connect the air inlet valve A 104, the air inlet valve B 204 and the external air inlet pipeline together with the pipeline 304;

[0036] 4. Install the feed inlet valve A 105 on the feed inlet 5 of the combined body A 101, install the feed inlet valve B 205 on the feed inlet 5 of the combined body B 201, and connect the feed inlet valve A 105, the feed inlet valve B 205 and the external feed pipeline together with the pipeline 303;

[0037] 5. Install the mud outlet valve A 106 on the mud outlet 6 of the combined body A 101, install the mud outlet valve B206 on the mud outlet 6 of the combined body B 201, and connect the mud outlet valve A 106, the mud outlet valve B206 and the external mud discharge pipeline together with the pipeline 305.

[0038] The combined use of body A 101 and the combined use of body B 201 work independently or simultaneously in sedimentation filtration:

[0039] 1. Open the discharge port valve A103 and the feed port valve A105, and close the oil discharge port valve A102, the air inlet valve A104, and the mud discharge port valve A106, so that the raw water can enter the combined use body A101 for sedimentation and filtration;

[0040] 2. Open the discharge port valve B 203 and the feed port valve B 205, and close the oil discharge port valve B 202, the air inlet valve B204, and the mud discharge port valve B 206, so that the raw water can enter the combined use body B 201 for sedimentation and filtration.

[0041] When the combined use body A 101 and the combined use body B 201 work independently or simultaneously in the sludge discharge, in the above-mentioned sedimentation and filtration working state:

[0042] 1. Open the mud outlet valve A 106 to discharge the sludge of the combined use body A 101 until the sludge is completely discharged, close the mud outlet valve A 106, and restore the sedimentation and filtration working state of the combined use body A 101;

[0043] 2. Open the mud outlet valve B 206 to discharge the sludge of the combined use body B 201 until the sludge is discharged cleanly, close the mud outlet valve B 206, and restore the sedimentation and filtration working state of the combined use body B 201.

[0044] When the combined use body A 101 and the combined use body B 201 work independently or simultaneously in backwashing and oil discharge, under the above-mentioned sedimentation and filtration working state:

[0045] 1. Close the outlet valve A103, open the air inlet valve A104 and the oil discharge valve A102, and allow compressed air to enter the combined use body A101 for backwashing until the oil molecules are completely discharged. Close the air inlet valve A104 and the oil discharge valve A102, open the outlet valve A103, and restore the sedimentation and filtration working state of the combined use body A101;

[0046] 2. Close the outlet valve B 203, open the air inlet valve B 204 and the oil discharge valve B 202, and allow compressed air to enter the combined body B 201 for backwashing until the oil molecules are discharged. Close the air inlet valve B 204 and the oil discharge valve B 202, open the outlet valve B 203, and restore the sedimentation and filtration working state of the combined body B 201.

[0047] During the sedimentation and filtration process of the present invention, mud removal and backwash oil removal should be carried out according to the actual water quality. If necessary, the working quality and effect of the present invention can be ensured by replacing the oil-absorbing filter cotton 8 and adjusting the diameter of the distribution hole 16 of the air-water distributor 10.

Claims

1. A sedimentation and oil removal device, comprising a main body, a feed inlet, an air inlet, a discharge port, an oil discharge port and a mud discharge port, characterized in that: The main body is composed of a water inlet area, a sludge sedimentation area, a sludge storage area, a clarification area, an oil absorption area and a water outlet area, and the feed inlet, air inlet, discharge port, oil discharge port and sludge discharge port are arranged on the main body; The water inlet area is provided with an air-water distributor, the sludge sedimentation area is provided with a sludge sedimentation inclined pipe, the oil absorption area is provided with oil absorption filter cotton, the water outlet area is provided with a water outlet triangular weir, the clarification area is arranged between the sludge sedimentation area and the oil absorption area, and the sludge storage area is arranged at the lower part of the main body.

2. The sedimentation and oil removal device according to claim 1, characterized in that: The feed port, the air inlet and the air-water distributor are interconnected, and the discharge port, the oil discharge port and the water outlet triangular weir are interconnected.

3. The sedimentation and oil removal device according to claim 1, characterized in that: The oil absorption filter cotton is replaceable, and the distribution hole of the air-water distributor can be adjusted in size.

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