CN105582740B - A kind of integrated form sewage disposal system - Google Patents

Abstract

The present invention relates to technical field of sewage, disclose a kind of integrated form sewage disposal system, including settler and filter, settler includes housing, guide shell, type sloping plate component, the bottom of housing is provided with the sludge hopper of back taper, the bottom of sludge hopper is provided with discharge pipeline, guide shell is in up big and down small truncated cone-shaped structure, the upper end closed of guide shell, lower ending opening, the upper side of guide shell is provided with water inlet pipe, the support tube being distributed along axis is provided with guide shell, the outside of support tube is provided with inside spin band, the return flow line of annular is formed between the outside of guide shell and inner walls, case top is provided with drainpipe, the outer end of drainpipe is connected with described filter, the bottom sides of filter are provided with water pipe.The present invention has integrated height, and floor space is small, the high beneficial effect of sewage treating efficiency.

Description

An integrated sewage treatment system

technical field

The invention relates to the technical field of sewage treatment, in particular to an integrated sewage treatment system.

Background technique

At present, water resources are constantly scarce, and people pay more and more attention to sewage treatment, recycling and utilization. In common sewage treatment, sewage is usually treated by multi-channel separation, sedimentation, filtration, etc. Each treatment process in the sewage treatment system is usually separated separately. For example, the sedimentation tank only plays a role in sedimentation, and one sedimentation is required in a sewage treatment system. Pool, secondary sedimentation tank, and tertiary sedimentation tank, the sedimentation tank alone occupies a large area. For general small and medium-sized factories, a complete sewage treatment system occupies a large area, and its sewage treatment system covers an area of 200 Between square meters and 500 square meters, each treatment part in the sewage treatment system is independent, so that on the one hand, it occupies a large area, and on the other hand, the pipeline layout is also very complicated, which is not conducive to maintenance.

Contents of the invention

In order to overcome the shortcomings of the sewage treatment system in the prior art that the equipment of each treatment step is independent, there are many types of equipment, the wiring between the equipment is complicated, and the overall floor area is large, the present invention provides a highly integrated, An integrated sewage treatment system with small footprint and high sewage treatment efficiency.

In order to achieve the above object, the present invention adopts the following technical solutions:

An integrated sewage treatment system, including a settling device and a filtering device. The settling device includes a casing, a guide cylinder arranged at the lower end inside the casing, and a sloping plate assembly arranged at the upper end inside the casing. The bottom is provided with an inverted cone-shaped mud collecting bucket, and the bottom of the mud collecting bucket is provided with a mud discharge pipe. The above-mentioned guide tube is in the shape of a circular frustum with a large top and a small bottom. The upper end of the guide tube is closed, and the lower end Opening, the upper side of the guide tube is provided with a water inlet pipe, the guide tube is provided with support tubes distributed along the axis, the outside of the support tube is provided with an inner spiral belt, the outside of the guide tube and the inside of the housing An annular backflow channel is formed between the walls, a drain pipe is provided on the top of the housing, and the outer end of the drain pipe is connected to the filter device, and a clear water pipe is provided on the bottom side of the filter device.

In normal use, the mud discharge pipe is closed, the sewage enters the guide cylinder from the water inlet pipe, and the sewage flows to the bottom of the guide cylinder along the spiral channel between the inner spiral belts. During the flow process, the direction of the water flow is constantly changing, and the water flow The momentum is constantly decreasing, and the flow rate of the water is constantly slowing down. During this process, a large amount of solid particles such as sediment in the sewage accumulate on the surface of the spiral belt, and then settle along the spiral belt to the bottom of the mud collecting bucket, and the settled water flows upward from the return channel. The flow enters the inclined plate assembly. The inclined plate assembly uses the shallow pool theory to promote the secondary precipitation of the particles remaining in the water. The water on the top of the shell enters the filter device from the drain pipe, and the filter device filters out a small amount of impurities remaining in the water. Finally The clear water is discharged from the clear water pipe, and the sludge (formed by sewage sedimentation) in the mud collecting bucket is regularly cleaned through the mud discharge pipe. This kind of sewage treatment system has a high degree of concentration, a small footprint, high sewage treatment efficiency, and more thorough separation of impurities in sewage.

As a preference, the upper end and the lower end of the support tube are respectively fixedly connected to the inner wall of the guide tube through the connecting bracket; the lower end of the housing is provided with a lower beam for supporting the guide tube, and the middle part of the housing is provided with The upper beam that supports the ramp assembly. The connection bracket is used for the positioning of the support tube.

Preferably, an outer helical band is provided on the outer side of the guide cylinder, and the direction of rotation of the outer helical band is opposite to that of the inner helical band. After the sewage passes through the inner spiral belt, a part of the sediment in the sewage undergoes a sedimentation, and when the once-sedimented sewage passes through the outer spiral belt, the direction of rotation of the sewage also changes, the momentum of the sewage is further lost, and the flow velocity is further slowed down. The spiral belt is deposited again, and the sediment after sedimentation flows into the mud collecting bucket along the surface of the outer spiral belt.

As a preference, the lower end of the support tube is closed, the upper end of the support tube is connected with a drug feeding tube, the outer end of the drug feeding tube protrudes out of the casing, and a number of drug outlet holes are provided on the side of the supporting tube. Add flocculants and other agents that promote solid-liquid separation in sewage through the drug inlet pipe, thereby promoting the flocculation and precipitation of impurities in sewage. The sewage circulates along the spiral channel between the inner spiral belts, which is conducive to the full mixing of flocculant and sewage.

Preferably, the upper end of the guide cylinder is fixed with a primary filter, and the primary filter completely covers the return channel. The sewage that has been precipitated by the inner helical belt and the outer helical belt is filtered through the primary filter to filter out some unprecipitated larger impurities, and the filtered sewage enters the swash plate assembly.

Preferably, there are two groups of swash plate assemblies, the inner upper ends of the two groups of swash plate assemblies are in contact, and an inverted V-shaped liquid inlet channel is formed between the two groups of swash plate assemblies; the swash plate assembly includes a swash plate mounting bracket 1. A number of slant plates, the slant plates are fixed on the slant plate mounting bracket in parallel from top to bottom, the slant plates on the two sets of slant plate assemblies are symmetrically distributed in a figure-eight shape, and the housing is located on the slant plate assembly An auxiliary sewage collection tank is provided at the lower end of the outer side, and a sewage discharge pipe is provided at the bottom of the auxiliary sewage collection tank. Sewage enters the gap between the sloping plates from both sides of the liquid inlet channel and flows down along the gap, flows to the outer end of the sloping plate assembly and then flows back upwards, and finally is discharged from the drain pipe, and the residual impurities in the sewage settle to the The surface of the inclined plate falls into the auxiliary sewage collection tank along the inclined plate. The direction of water flow in the gap between the inclined plates is the same as that of the sediment, which can promote the sediment to fall into the auxiliary sewage collection tank. The auxiliary sewage collection tank The sediment inside needs to be cleaned regularly.

Preferably, the included angle between the inclined plates and the horizontal plane is 30°-50°, and the distance between adjacent inclined plates is 10mm-15mm.

Preferably, the top of the housing is provided with a cover plate, and the middle part of the cover plate is provided with a secondary filter screen with an inverted trapezoidal cross-section, and the mesh of the secondary filter screen is smaller than that of the primary filter screen. , the drain pipe is located on the upper side of the secondary filter screen. The water deposited by the inclined plate assembly is filtered by the secondary filter and then discharged from the drain pipe.

As a preference, the filter device includes a box body and a filter filler arranged in the box body, the lower end of the box body is provided with a water tank, and the lower end side of the box body is provided with a water pipe communicating with the lower end side of the water tank; An exhaust pipe is arranged on the side of the lower end of the box body. The water in the water tank is spare water for emergency use. The filtered water fills the water tank first, and the excess water is discharged from the clean water pipe; the exhaust pipe can discharge the gas in the filter packing.

As a preference, a backwash pipe is provided on the side of the lower end of the water tank, the outer end of the backwash pipe is connected to the clear water pipe through a three-way joint, a water pump is provided on the backwash pipe, and the outer end of the backwash pipe A water valve is provided at the end, and a backwash sewage outlet is provided on the side of the upper end of the box. When the impurity content in the filter packing is too much, turn on the water valve and the water pump, and the clean water in the water tank will be pumped into the bottom of the tank and flow upwards, so as to backwash the impurities in the filter packing, and finally the impurities will be discharged from the backwash sewage outlet. Drain.

Therefore, the present invention has the beneficial effects of high integration, small footprint and high sewage treatment efficiency.

Description of drawings

Fig. 1 is a kind of structure diagram of the present invention.

Fig. 2 is a sectional view at A-A in Fig. 1 .

In the figure: sedimentation device 1, filter device 2, housing 3, guide tube 4, inclined plate assembly 5, mud collecting bucket 6, mud discharge pipe 7, support foot 8, water inlet pipe 9, support pipe 10, connecting bracket 11 , inner spiral belt 12, return channel 13, primary filter screen 14, outer spiral belt 15, drain pipe 16, clean water pipe 17, medicine inlet pipe 18, medicine outlet hole 19, box body 20, filter packing 21, water tank 22, Water pipe 23, exhaust pipe 24, backwash pipe 25, tee joint 26, water pump 27, water valve 28, backwash sewage outlet 29, lower beam 30, upper beam 31, auxiliary sewage collection tank 32, sewage pipe 33, cover Plate 34, secondary filter screen 35, liquid inlet channel 50, inclined plate mounting bracket 51, several inclined plates 52.

detailed description

The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

A combined sewage treatment system as shown in Figure 1 includes a settling device 1 and a filtering device 2. The settling device 1 includes a shell 3, a guide tube 4 arranged at the lower end of the shell, and an inclined tube set at the upper end of the shell. The plate assembly 5, the lower end of the housing 3 is provided with a lower beam 30 for supporting the guide cylinder, and the middle part of the housing is provided with an upper beam 31 for supporting the inclined plate assembly; the bottom of the housing 3 is provided with an inverted tapered mud collecting bucket 6. The bottom of the mud collecting bucket 6 is provided with a mud discharge pipe 7, and the outer side of the lower end of the shell is also provided with a support foot 8. The guide tube 4 has a circular frustum-shaped structure with a large top and a small bottom. The upper end of the guide tube 4 is closed, and the lower end is closed. Opening, the upper side of the guide tube 4 is provided with a water inlet pipe 9;

The guide tube 4 is provided with support tubes 10 distributed along the axis, and the upper and lower ends of the support tubes are fixedly connected to the inner wall of the guide tube through connecting brackets 11 respectively. The lower end of the support tube 10 is closed, and the upper end of the support tube 10 is connected with a medicine feed pipe 18, and the outer end of the medicine feed tube stretches out of the housing, and the side of the support tube 10 is provided with some medicine outlet holes 19; An annular backflow channel 13 is formed between the inner walls, and the upper end of the guide cylinder 4 is fixed with a primary filter screen 14, which completely covers the upper end of the return channel. The direction of rotation of 15 is opposite to the direction of rotation of the inner spiral belt 12. The top of the housing 3 is provided with a cover plate 34, and the middle part of the cover plate 34 is provided with a secondary filter screen 35 with an inverted trapezoidal cross section. The mesh is smaller than the mesh of the primary filter screen, and the drain pipe 16 is positioned on the upper side of the secondary filter screen, and the outer end of the drain pipe is connected with the filter device 2, and the bottom side of the filter device 2 is provided with a clean water pipe 17.

Filtration device 2 comprises box body 20, is located at the filter filler 21 in box body, and the lower end of box body is provided with water tank 22, and the lower end side of box body is provided with the water pipe 23 that is communicated with water tank lower end side, and the lower end side of box body is provided with drainage. Trachea 24; The lower end side of water tank 22 is provided with backwash pipe 25, and the outer end of backwash pipe 25 is connected with clean water pipe 17 by tee joint 26, and backwash pipe is provided with water pump 27, and the outer end of backwash pipe is provided with There is a water valve 28, and the upper side of the casing 20 is provided with a backwash sewage outlet 29.

As shown in Figure 2, there are two groups of swash plate assemblies 5, the inner upper ends of the two groups of swash plate assemblies are in contact, and an inverted V-shaped liquid inlet channel 50 is formed between the two groups of swash plate assemblies; the swash plate assembly 5 includes a swash plate mounting bracket 51. A number of slant plates 52, the slant plates are fixed parallelly on the slant plate mounting brackets from top to bottom in sequence, the slant plates on the two sets of slant plate assemblies are symmetrically distributed in a figure-eight shape, and the shell 3 is located at the outer lower end of the slant plate assembly An auxiliary sewage collection tank 32 is provided at the bottom of the auxiliary sewage collection tank 32, and a sewage discharge pipe 33 is provided at the bottom of the auxiliary sewage collection tank 32; the angle between the inclined plate and the horizontal plane is 30°, and the distance between adjacent inclined plates is 12mm.

Combined with the accompanying drawings, the principle of the present invention is as follows: the mud discharge pipe and the auxiliary sewage pipe are closed, the sewage enters the diversion cylinder from the water inlet pipe, and at the same time, the flocculant enters from the medicine feed pipe, and in the spiral channel between the inner spiral belts, The flocculant and sewage are fully mixed, and the sediment in the sewage is deposited on the surface of the inner spiral belt once and falls into the mud collecting bucket along the inner spiral belt, and the sewage flows upward along the return channel. In the return channel, the sewage in the sewage The impurities are precipitated to the surface of the outer spiral belt after secondary precipitation, and finally fall into the mud collecting hopper; after being filtered by the primary filter at the top of the return channel, they enter the liquid inlet channel between the inclined plate components, and then flow along the inclined plate The gap between them flows from top to bottom to the outside of the inclined plate assembly. The impurities remaining in the sewage settle on the side of the inclined plate three times and fall into the auxiliary sewage collection tank along the inclined plate. The sewage after the third precipitation flows upward through the second After secondary filtration by the filter screen, it is discharged into the filter device from the drainage pipe. The impurities in the sewage are filtered by the filter packing for three times, and the filtered clean water is discharged from the clean water pipe. The sludge and impurities in the mud collection bucket and sewage collection tank are cleaned regularly ; When there are too many impurities in the filter packing and the filtering effect is affected, turn on the water valve and the water pump, and the water pump will send the clean water stored in the water tank to the bottom of the box body, and the water will flush upward from the bottom of the filter packing to wash away the impurities in the filter packing Come out and drain from the backwash drain. Therefore, the present invention has the beneficial effects of high integration, small footprint and high sewage treatment efficiency.

Claims (8)

1. An integrated sewage treatment system, characterized in that it includes a settling device and a filtering device, and the settling device includes a shell, a guide tube arranged at the lower end inside the shell, and a slant plate assembly arranged at the upper end inside the shell , the bottom of the housing is provided with an inverted cone-shaped mud collecting bucket, the bottom of the mud collecting bucket is provided with a mud discharge pipe, and the guide tube is in the shape of a conical structure with a large upper part and a smaller lower part. The upper end of the tube is closed and the lower end is open. The upper end of the guide tube is provided with a water inlet pipe. The guide tube is provided with support tubes distributed along the axis. The outer side of the support tube is provided with an inner spiral belt. An annular backflow channel is formed between the outer side of the cylinder and the inner wall of the housing. A drain pipe is provided on the top of the housing, and the outer end of the drain pipe is connected to the filter device. The bottom side of the filter device is provided with a clear water tube; the outer side of the guide cylinder is provided with an outer helical band, and the helical direction of the outer helical band is opposite to that of the inner helical band; The upper end of the inner side is in contact with each other, and an inverted V-shaped liquid inlet channel is formed between the two groups of swash plate assemblies; the slant plate assembly includes a slant plate mounting bracket and several slant plates, and the slant plates are fixed in parallel in sequence from top to bottom. On the sloping plate mounting bracket, the sloping plates on the two sets of sloping plate assemblies are symmetrically distributed in a figure-eight shape, and the housing is located at the lower end of the outer side of the sloping plate assembly. An auxiliary dirt collection tank is provided. There is a drainpipe at the bottom. 2. An integrated sewage treatment system according to claim 1, characterized in that, the upper end and the lower end of the support pipe are respectively fixedly connected to the inner wall of the guide tube through the connecting bracket; the lower end of the housing is provided with a In order to support the lower beam of the guide cylinder, the middle part of the housing is provided with an upper beam for supporting the swash plate assembly. 3. An integrated sewage treatment system according to claim 1 or 2, characterized in that the lower end of the support pipe is closed, the upper end of the support pipe is connected with a medicine feeding pipe, and the outer side of the medicine feeding pipe is The end extends out of the shell, and the side of the support tube is provided with a number of drug outlet holes. 4 . The integrated sewage treatment system according to claim 1 , wherein a primary filter screen is fixed on the upper end of the guide cylinder, and the primary filter screen completely covers the backflow channel. 5. An integrated sewage treatment system according to claim 1, characterized in that the angle between the inclined plates and the horizontal plane is 30°-50°, and the distance between adjacent inclined plates is 10mm-15mm. 6. An integrated sewage treatment system according to claim 4, the top of the housing is provided with a cover plate, and the middle part of the cover plate is provided with a secondary filter screen with an inverted trapezoidal cross-section, and the two The mesh opening of the first-stage filter screen is smaller than that of the first-stage filter screen, and the drain pipe is located on the upper side of the second-stage filter screen. 7. A kind of integrated sewage treatment system according to claim 1, it is characterized in that, described filtering device comprises box body, is arranged in the filter filler in box body, and the lower end of described box body is provided with water tank, so The lower side of the box is provided with a water pipe communicating with the lower side of the water tank; the lower side of the box is provided with an exhaust pipe. 8. An integrated sewage treatment system according to claim 7, characterized in that a backwash pipe is provided on the side of the lower end of the water tank, and the outer end of the backwash pipe is connected to the clean water pipe through a three-way joint. connected, the backwash pipe is provided with a water pump, the outer end of the backwash pipe is provided with a water valve, and the upper side of the box is provided with a backwash sewage outlet.