Combined construction type facility for sludge backflow and sewage distribution and collection

Abstract

The utility model discloses a combined construction type facility for sludge backflow and sewage distribution and collection, belongs to the technical field of sewage treatment, and solves the problems that the conventional facility for sludge backflow and sewage distribution and collection in a sewage treatment plant is scattered in arrangement and large in occupied area. A biological tank water distribution well and a final sedimentation tank water collecting well are respectively arranged around two sides of a sludge pump room, two ends of the biological tank water distribution well are respectively provided with a buffer tank, the biological tank water distribution well is connected with the buffer tank through an overflow weir, and the buffer tank is connected with a final sedimentation tank through a final sedimentation tank water inlet pipe. The final sedimentation tank water collecting well is connected with the final sedimentation tank through a final sedimentation tank water outlet pipe, the sludge pump room is connected with the final sedimentation tank through a final sedimentation tank sludge pipe, and a return sludge pump and a residual sludge pump are respectively arranged in the sludge pump room. By means of the integrated reasonable design, construction land is saved, pipeline arrangement is reduced, engineering investment is saved, and later operation maintenance and overhaul are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sewage treatment technical field, more particularly to a kind of facilities for sludge backflow and sewage distribution and water collection of combined construction. BACKGROUND

[0002] City sewage treatment plant is mainly used for treating domestic sewage, and is an important infrastructure in the process of city development and construction, and is usually located in the lower reaches of the city, where the terrain is relatively low. The traditional sewage treatment plant often has scattered facilities such as backflow and residual sludge pump house, biological pool water distribution well and effluent water collection well, which results in large land occupation and high engineering investment. With the continuous development of the city, the increasing population and the requirement of the state for intensive and economical construction land, higher requirements are put forward for the construction and reconstruction of sewage treatment plants, especially in the process of expansion and reconstruction of sewage treatment plants, which often faces the situation that the construction land red line of the sewage treatment plant has been drawn and the land is very tight. In order to avoid the above problems, the utility model provides a sewage treatment facility for sludge backflow and sewage distribution and water collection of combined construction, which can save land occupation and reduce engineering investment. SUMMARY

[0003] The utility model aims to provide a kind of facilities for sludge backflow and sewage distribution and water collection of combined construction, to solve the problem of scattered facilities for sludge backflow and sewage distribution and water collection in the current sewage treatment plant, large land occupation.

[0004] The technical scheme of the utility model is: a kind of facilities for sludge backflow and sewage distribution and water collection of combined construction, including biological pool water distribution well, final settling tank water collection well and sludge pump house, biological pool water distribution well and final settling tank water collection well are respectively arranged on the two sides of sludge pump house, biological pool water distribution well is connected with biological pool effluent pipe, and buffer tank is respectively arranged at the two ends of biological pool water distribution well, biological pool water distribution well is connected with buffer tank by overflow weir, buffer tank is connected with final settling tank by final settling tank inlet pipe, final settling tank water collection well is connected with final settling tank by final settling tank effluent pipe, final settling tank water collection well is connected with water collection well effluent pipe, sludge pump house is connected with final settling tank by final settling tank sludge pipe, and backflow sludge pump and residual sludge pump are respectively arranged in sludge pump house, output end of backflow sludge pump is provided with backflow pipe, and output end of residual sludge pump is provided with sludge discharge pipe.

[0005] As a further improvement of the utility model, backflow valve group is arranged on backflow pipe; sludge discharge valve group is arranged on sludge discharge pipe.

[0006] As a further improvement of the utility model, valve well is arranged on the side of biological pool water distribution well, and backflow valve group and sludge discharge valve group are located in valve well.

[0007] The utility model discloses a beneficial effect is: the utility model carries out the high -degree integration to the originally dispersed biological pool water distribution well, final sedimentation tank catch basin and sludge pump house etc. construction in sewage treatment plant, carries out the integrated reasonable design, saves the construction land, also reduces pipeline arrangement, saves the project investment, is favorable to the later operation maintenance and overhauls, responds the request of the country saving intensive construction land. The utility model is applicable to the new building, expansion and reconstruction of sewage treatment facilities in sewage treatment plant, can be popularized and applied on a large scale, has very strong practicality. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 It is the plane structure schematic diagram of the utility model;

[0009] Figure 2 It is Figure 1 A-A view in.

[0010] In the drawing: 1-biological pool water distribution well;2-buffer tank;3-final sedimentation tank catch basin;4-sludge pump house;5-overflow weir;6-biological pool effluent pipe;7-final sedimentation tank inlet pipe;8-final sedimentation tank effluent pipe;9-final sedimentation tank sludge pipe;10-surplus sludge pump;11-backflow pipe;12-sludge discharge pipe;13-backflow valve group;14-sludge discharge valve group;15-valve well;16-backflow sludge pump;17-catch basin effluent pipe. DETAILED DESCRIPTION

[0011] The utility model is described in detail below in combination with the drawings.

[0012] The utility model is arranged between the final sedimentation tank and biological pool of sewage treatment plant, as shown in Figure 1 、 Figure 2 A kind of facility for sludge backflow and sewage water distribution catch basin of combined construction, including biological pool water distribution well 1, final sedimentation tank catch basin 3 and sludge pump house 4, biological pool water distribution well 1 and final sedimentation tank catch basin 3 are respectively arranged in sludge pump house 4 two sides around, biological pool water distribution well 1 is connected with biological pool effluent pipe 6, and biological pool water distribution well 1 both ends are equipped with buffer tank 2 respectively, and biological pool water distribution well 1 is connected with buffer tank 2 by overflow weir 5, and buffer tank 2 is connected with final sedimentation tank by final sedimentation tank inlet pipe 7, and final sedimentation tank catch basin 3 is connected with final sedimentation tank by final sedimentation tank effluent pipe 8, and final sedimentation tank catch basin 3 is connected with catch basin effluent pipe 17, and sludge pump house 4 is connected with final sedimentation tank by final sedimentation tank sludge pipe 9, and sludge pump house 4 is equipped with backflow sludge pump 16 and surplus sludge pump 10 respectively, and the output end of backflow sludge pump 16 is equipped with backflow pipe 11, and the output end of surplus sludge pump 10 is equipped with sludge discharge pipe 12.

[0013] Backflow valve group 13 is equipped on backflow pipe 11;Sludge discharge valve group 14 is equipped on sludge discharge pipe 12.

[0014] A valve well 15 is arranged at the side of the water distribution well 1 of the biological tank, and the backflow valve group 13 and the sludge discharge valve group 14 are arranged in the valve well 15.

[0015] The sewage treated by the biological tank flows into the water distribution well 1 of the biological tank through the biological tank outlet pipe 6, and then flows into the buffer tank 2 through the overflow weirs 5 at both ends of the water distribution well 1 of the biological tank, and then flows into the final settling tank through the final settling tank inlet pipe 7. After the sewage is deposited in the final settling tank, the sewage flows into the water collecting well 3 of the final settling tank through the final settling tank outlet pipe 8, and finally flows into the deep treatment link for further treatment through the water collecting well outlet pipe 17. After the sewage is deposited in the final settling tank, the sludge deposited at the bottom of the final settling tank flows into the sludge pump house 4 through the final settling tank sludge pipe 9, the backflow sludge pump 16 and the backflow pipe 11 convey the sludge to the biological tank, and the residual sludge pump 10 and the sludge discharge pipe 12 convey the residual sludge to the sludge treatment structure, so that the backflow and discharge of the sludge are realized. The valve well 15 is integrated at the side of the water distribution well 1 of the biological tank, so that the backflow valve group 13 and the sludge discharge valve group 14 can be maintained conveniently.

[0016] The facilities for sludge backflow and sewage distribution and collection in the sewage treatment plant are designed integrally, the connecting pipes between structures are reduced, the engineering investment is effectively reduced, and the operation, maintenance and repair of the sewage plant in the later period are facilitated. The utility model effectively solves the practical problems that the traditional sewage treatment facilities cannot be arranged due to the shortage of construction land in the construction (including new construction and reconstruction) process of the sewage treatment plant.

Claims

1. A combined facility for sludge return and sewage distribution collection, comprising a biological tank distribution well, a final settling tank collection well and a sludge pump house, characterized in that: The biological pool water distribution well (1) and the final sedimentation pool water collecting well (3) are respectively arranged around the sides of the sludge pump house (4), the biological pool water distribution well (1) is connected with a biological pool water outlet pipe (6), the two ends of the biological pool water distribution well (1) are respectively provided with buffer pools (2), the biological pool water distribution well (1) is connected with the buffer pools (2) through overflow weirs (5), the buffer pools (2) are connected with the final sedimentation pool through final sedimentation pool water inlet pipes (7), the final sedimentation pool water collecting well (3) is connected with the final sedimentation pool through a final sedimentation pool water outlet pipe (8), the final sedimentation pool water collecting well (3) is connected with a water collecting well water outlet pipe (17), the sludge pump house (4) is connected with the final sedimentation pool through a final sedimentation pool sludge pipe (9), the sludge pump house (4) is respectively provided with a backflow sludge pump (16) and a residual sludge pump (10), the output end of the backflow sludge pump (16) is provided with a backflow pipe (11), and the output end of the residual sludge pump (10) is provided with a sludge discharge pipe (12).

2. A facility for sludge return and sewage distribution collection according to claim 1, characterized in that: The backflow pipe (11) is provided with a backflow valve group (13); and the sludge discharge pipe (12) is provided with a sludge discharge valve group (14).

3. A facility for sludge return and sewage distribution collection according to claim 2, characterized in that: A valve well (15) is arranged at the side of the biological pool water distribution well (1), and the backflow valve group (13) and the sludge discharge valve group (14) are both located in the valve well (15).

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