CN205627207U - Sewage treatment carries sand machine - Google Patents

Abstract

The utility model provides a sewage treatment carries sand machine, belongs to the sewage treatment field, including grit conveyer, support, water tank, and emptying pipeline, the unloading valve, the overflow pipe advances sha kou, the grit conveyer install on the support, the support mounting in the lower part of grit conveyer, the water tank install the lower half at the grit conveyer, with the lower half parcel of grit conveyer in the water tank, emptying pipeline install the bottommost at the water tank, with the inside intercommunication of water tank, the unloading valve install on emptying pipeline, the overflow pipe install on the lateral wall of water tank, be located the high half department of water tank lateral wall, the sand mouth that advances set up on the upper portion of water tank, have and to reduce the grit soaking time, reduce the water content among the grit transportation process, make things convenient for the transportation of mud grit, reduce the environmental pollution's of heap sand department characteristics.

Description

A kind of sewage disposal carries sand machine

Technical field

This utility model belongs to field of municipal sewage treatment, carries sand machine particularly to a kind of sewage disposal.

Background technology

In sewage treatment plant, after municipal sewage enters into sewage treatment plant, through primary precipitation, take out sand, stirring, biological respinse, again precipitating, the operation such as filtration enters recycle-water system, and the mud in remaining water enters sludge concentration tank, improve the concentration of mud further, by sludge pump, aqueous mud is transported to sludge-tank again, precipitates further, then by sludge pump, the mud of sludge-tank is retracted to mud deslimer by sludge dewatering, it is beneficial to follow-up transport and processes further, and treated sewage can be realized as qualified discharge or recycling；When municipal sewage has just enter into sewage treatment plant, the impurity ratio contained in sewage is relatively big, and through preliminary sedimentation, it is deposited to the impurity bottom sedimentation tank and is mostly the impurity that the proportion of sand class is bigger, through putting forward sand system, is sent to carry sand machine and carries out girt-water separation；The existing sand machine that carries mostly uses and spirally carries sand machine, water tank is had carrying sand machine one end, its water tank import receives the sand system that carries from sedimentation tank to carry the sand aqueous mixtures of coming, and the bigger solid impurity of proportion is transported to carry the port of export of sand machine by auger conveyor, and water is left in water tank；The existing sand machine water tank that carries mostly uses and arranges overfall in tank top, the conveyer being so most is submerged in water so that the sand water content of conveying is big, arrives and still has a large amount of current to drop down when carrying the sand machine port of export, causing the transport inconvenience of mud sand, sewage also can cause environmental pollution at sand heap.

Summary of the invention

Put forward, for existing sewage treatment plant, the problems referred to above that sand machine exists, the utility model proposes a kind of sewage disposal and carry sand machine, it is characterised in that: include sand conveyer, support, water tank, exhausting pipeline, be vented valve, overflow pipe, sand inlet；Described sand conveyer is rack-mount, for screw conveyer；Described support is arranged on the bottom of sand conveyer；Described water tank is arranged on the lower half of sand conveyer, is wrapped in water tank the lower half of sand conveyer；Described exhausting pipeline is arranged on the bottommost of water tank, connects with water tank inside；Described emptying valve is arranged on exhausting pipeline；Described overflow pipe is arranged on the sidewall of water tank, is positioned at the height 1/2nd of water tank sidewall；Described sand inlet is arranged on the top of water tank, connects with water tank inside.

Beneficial effect

The beneficial effects of the utility model are, it is possible to reduce sand soaking time, reduce the water content in sand course of conveying, facilitate mud sand to transport, and reduce the environmental pollution at heap sand.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model

1. sand conveyer, 2. support, 3. water tank, 4. exhausting pipeline, 5. emptying valve, 6. overflow pipe, 7. sand inlet.

Detailed description of the invention

In order to further illustrate the technical solution of the utility model, in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described, support 2, as sand conveyer 1, is arranged on the bottom of sand conveyer 1 by screw conveyer as general in the selection industry in Fig. 1, this example；Selecting the water tank and mounting means that the industry is general as water tank 3 in this example, arrange the hole installing exhausting pipeline 4 in the bottom of water tank 3, the aqueduct using the industry general as exhausting pipeline 4 and attaches it in the exhausting pipeline installing hole bottom water tank 3；Gate valve is installed as emptying valve 5 in the end of exhausting pipeline 4；Selection thin-wall stainless steel is as overflow pipe 6, and attaches it to, at water tank 3 Sidewall Height 1/2nd, arrange sand inlet 7 at water tank 3 top, just complete enforcement of the present utility model；During application, the mud sand containing water released from mudpan, water tank 3 is entered internal from sand inlet 7, owing to sand proportion is bigger, the bottom of water tank 3 will be deposited in, the most also it is the charging aperture of sand conveyer 1, start sand conveyer 1, sand moves to the port of export of sand conveyer 1 under the effect of augers bottom water tank 3, and be left in water tank 3 from the water that sedimentation tank is released with sand, increasing number along with the aqueous sand entered in water tank 3, the water of residual also can get more and more, after sand is transported away, the height of water of residual reach the height of water tank 3 two/for the moment, water can flow out from overflow pipe 6, enter sedimentation tank by pipeline to process further；Owing to reducing the overflow pipe 6 height on water tank 3, make the water level in water tank 3 keep below water tank 3 height 1/2nd, which reduces the sand time in water, when making sand move to the port of export of sand conveyer 1, water content is substantially reduced, experiment shows if the position of overflow pipe 6 is the lowest, sand also can overflow from overflow pipe 6, need again precipitate and take out sand, cause repetition and waste, if the position of overflow pipe 6 is too high, then can cause sand long soaking time in water, the water content of impact outlet sand；When taking out sand work and bringing to a temporary one section, opening emptying valve 5, the water in water tank 3 can be excluded completely, it is to avoid the sewage of residual is to water tank 3 and the corrosion of sand conveyer 1 and infringement.

Claims (1)

1. a sewage disposal carries sand machine, it is characterised in that: include sand conveyer, support, water tank, exhausting pipeline, be vented valve, overflow pipe, sand inlet；Described sand conveyer is rack-mount, for screw conveyer；Described support is arranged on the bottom of sand conveyer；Described water tank is arranged on the lower half of sand conveyer, is wrapped in water tank the lower half of sand conveyer；Described exhausting pipeline is arranged on the bottommost of water tank, connects with water tank inside；Described emptying valve is arranged on exhausting pipeline；Described overflow pipe is arranged on the sidewall of water tank, is positioned at the height 1/2nd of water tank sidewall；Described sand inlet is arranged on the top of water tank, connects with water tank inside.