CN209507938U - A kind of biochemical sludge processing equipment - Google Patents

Abstract

The utility model relates to a kind of biochemical sludge processing equipments, it is characterized in that comprising: sewage sludge storage tank, No. 1 low temperature hydrolysis tank, No. 2 low temperature hydrolysis tanks, A/AD nitrating pot, quenched tank, mechanical dehydration machine and belt-type drying machine, wherein sewage sludge storage tank downstream is separately connected No. 1 low temperature hydrolysis tank and No. 2 low temperature hydrolysis tanks, No. 1 low temperature hydrolysis tank and No. 2 low temperature hydrolysis tank downstreams are connect with A/AD nitrating pot, the quenched tank of A/AD nitrating pot downstream connection, quenched tank downstream connection mechanical dehydration machine, mechanical dehydration machine downstream connection belt-type drying machine.The biochemical sludge processing equipment of the utility model efficiently and stably realizes the minimizing of biochemical sludge, innoxious, stabilisation, and handling biochemical sludge by low temperature hydrolysis and A/AD nitration processes makes its decrement, then is reduced its depth by dehydration.

Description

A kind of biochemical sludge processing equipment

Technical field

The utility model relates to biochemical sludge process fields, more particularly to a kind of biochemical sludge processing equipment.

Background technique

Sludge is the product after sewage treatment, is that one kind is made of organic debris, microorganism, inorganic particle, colloid etc. Extremely complex heterogeneous body.And the key property of biochemical sludge is that moisture content is high (up to 95% or more), organic matter contains Amount is high, it is smelly to be easy corruption, and particle is thinner, specific gravity is smaller, jelly liquid.It is dense between liquid and solid Thick object can use pump transport, but it is difficult to be separated by solid-liquid separation by sedimentation.Treatment of Sludge is to sludge progress minimizing, surely The process of fixedization and harmless treatment.Sewage treatment degree is higher, will generate more sludge residue needs and be pocessed. Sewage only is handled using land treatment systems or sump, otherwise general sewage treatment plant must be provided with sludge treatment facilities. For the sewage treatment plant of modernization, the processing and disposition of sludge have become most complicated in operation of sewage disposal system and flower Take highest a part.

In recent years, with agricultural sludge, increasingly strict, the sludge of standard of landfill (such as synthesis of organic substance and content of beary metal) Treatment process innovation and optimization it is just more and more important.Currently used biochemical sludge processing method has aerobic sigestion, aerobic Composting technology, although aerobic sigestion system palliating degradation degree is high, odorless stabilization is easily dehydrated, and fertile part is high, and operational management is simple, Capital cost is low, but operating cost is high, and digested sludge amount is few, and palliating degradation degree is big with temperature fluctuation.And aerobic compost technical operation Simply, cost is relatively low, is easier to be dehydrated after processing, but it is too long to handle the time.

Therefore, there is still a need for it is a kind of efficiently and stably realize biochemical sludge minimizing, it is innoxious, stabilize, at recycling The equipment of reason.

Utility model content

The purpose of this utility model is to efficiently and stably realize biochemical sludge minimizing, innoxious, stabilisation, resource Change the equipment of processing, biochemical sludge is mainly handled by low temperature hydrolysis and A/AD nitration processes, then it is made by dehydration Minimizing.

The technical solution of the utility model is as follows:

A kind of biochemical sludge processing equipment, it is characterised in that comprising: sewage sludge storage tank, No. 1 low temperature hydrolysis tank, No. 2 it is low Warm hydrolytic decomposition pot, A/AD nitrating pot, quenched tank, mechanical dehydration machine and belt-type drying machine, wherein sewage sludge storage tank downstream is separately connected 1 Number low temperature hydrolysis tank and No. 2 low temperature hydrolysis tanks, No. 1 low temperature hydrolysis tank and No. 2 low temperature hydrolysis tank downstreams connect with A/AD nitrating pot It connects, the quenched tank of A/AD nitrating pot downstream connection, quenched tank downstream connection mechanical dehydration machine, mechanical dehydration machine downstream connection belt type dry Change machine.

Preferably, compressed gas is set on the A/AD nitrating pot and is passed through port.

Preferably, in sewage sludge storage tank, No. 1 low temperature hydrolysis tank, No. 2 low temperature hydrolysis tanks, A/AD nitrating pot and quenched tank Equipped with blender.

It preferably, further include hot-water tower, wherein No. 1 low temperature hydrolysis tank, No. 2 low temperature hydrolysis tanks and A/AD nitrating pot are folder Layer structure, the hot water outlet of hot-water tower join on No. 1 low temperature hydrolysis tank, No. 2 low temperature hydrolysis tanks and A/AD nitrating pot with interlayer Logical hot water enters port and connects, cold with interlayer connection on No. 1 low temperature hydrolysis tank, No. 2 low temperature hydrolysis tanks and A/AD nitrating pot Condensate discharge port is connect with refluxing opening on hot-water tower.

Preferably, temperature controller is set in No. 1 low temperature hydrolysis tank, No. 2 low temperature hydrolysis tanks and A/AD nitrating pot, at it Hot water enter at port setting electrically operated valve, temperature controller is connect with electrically operated valve signal.

Preferably, the hot-water tower is equipped with water inlet and discharge outlet.

Preferably, heating wire is equipped in the hot-water tower.

The utility model has the beneficial effects that

The biochemical sludge processing equipment of the utility model efficiently and stably realizes the minimizing, innoxious of biochemical sludge, It stabilizes, handling biochemical sludge by low temperature hydrolysis and A/AD nitration processes makes its decrement, then makes its depth by dehydration Degree decrement.Specifically, the effect of 2 low temperature hydrolysis is to play the role of broken wall, decomposition to biochemical sludge, and nitrification is to play one Oxidation, scission of link effect, be exactly macromolecular substance fracture become subbranch substance have by a series of processing in front Conducive to mechanical dehydration (first step decrement), after mechanical dehydration, into belt type dehydration (depth decrement).

Detailed description of the invention

In order to be easier to understand the technical solution of the utility model and beneficial technical effect, by referring to showing in the accompanying drawings The application is described in detail in specific embodiment of the present utility model out.The attached drawing depicts only the allusion quotation of the application Type embodiment does not constitute the limitation to the protection scope of the application, in which:

Fig. 1 is the structural schematic diagram of an embodiment of the biochemical sludge processing equipment of the utility model.

Wherein: 1. sewage sludge storage tanks, No. 2.1 low temperature hydrolysis tanks, No. 3.2 low temperature hydrolysis tanks, 4.A/AD nitrating pot, 5. hot water Tower, 6. quenched tanks, 7. mechanical dehydration machines, 8. belt-type drying machines, 9. heating wire, 10. interlayers, 11. temperature controllers, 12. water inlets Mouth, 13. discharge outlet, 14. blenders.

Specific embodiment

Below in conjunction with attached drawing, the utility model is described in further detail.

As shown in Figure 1, the biochemical sludge processing equipment of an embodiment according to the present utility model, including sewage sludge storage The low temperature hydrolysis tank 2,2 of tank 1,1 low temperature hydrolysis tank 3, A/AD nitrating pot 4, quenched tank 6, mechanical dehydration machine 7 and belt-type drying machine 8, wherein 1 downstream of sewage sludge storage tank is separately connected 3, No. 1 low temperature hydrolysis tank 2 and 2 of No. 1 low temperature hydrolysis tank 2 and No. 2 low temperature hydrolysis tank Number 3 downstream of low temperature hydrolysis tank is connect with A/AD nitrating pot 4, the quenched tank 6 of 4 downstream connection of A/AD nitrating pot, and quenched 6 downstream of tank connects Pick tool dewaterer 7,7 downstream connection belt-type drying machine 8 of mechanical dehydration machine.

Biochemical sludge is stored in sewage sludge storage tank 1, alternately enters 2, No. 2 water at low temperature of No. 1 low temperature hydrolysis tank by gravity flow It solves in tank 3, temperature is controlled at 60 DEG C~95 DEG C in two low temperature hydrolysis tanks, and sludge carries out low temperature hydrolysis reaction in tank；Water Biochemical sludge after solution is alternately passed through A/AD nitrating pot 4, i.e., the sludge after No. 1 low temperature hydrolysis tank 2 hydrolyzes is passed through A/AD nitrating pot 4, while No. 23 tanks of low temperature hydrolysis continue to hydrolyze, and after the sludge for having handled No. 1 low temperature hydrolysis tank 2, then are passed through No. 2 low temperature hydrolysis tanks Sludge after 3 hydrolysis, while No. 1 low temperature hydrolysis tank 2 continues low temperature hydrolysis；It is carried out at A/AD nitrification in A/AD nitrating pot 4 Reason, temperature control is needed to be passed through port by the compressed air being arranged thereon in treatment process and is passed through at 30 DEG C~35 DEG C in tank Compressed air；Sludge after nitrification, which is passed through in quenched tank 6, to carry out quenched, and sludge is made to reach physics and chemical stabilization.Sewage sludge storage Blender 14 is equipped in tank 1,1 low temperature hydrolysis tank 2,2 low temperature hydrolysis tank 3, A/AD nitrating pot 4 and quenched tank 6.Quenched tank 6 need to control mixing speed, and speed is 10~130r/min；Sludge after quenched is passed through mechanical dehydration machine 7, enters back into after dehydration 8 desiccation of belt-type drying machine；2, No. 2 low temperature hydrolysis tanks 3 of No. 1 low temperature hydrolysis tank and A/AD nitrating pot 4 need to control during processing Temperature processed provides hot water by hot-water tower 5, and hot water is generated by the heating of heating wire 9 being arranged in hot-water tower 5, No. 1 low temperature hydrolysis 2, No. 2 low temperature hydrolysis tanks 3 of tank and A/AD nitrating pot 4 include interlayer 10, the hot water outlet of hot-water tower 5 and No. 1 low temperature hydrolysis Enter port with the hot water of interlayer connection on 2, No. 2 low temperature hydrolysis tanks 3 of tank and A/AD nitrating pot 4 to connect, No. 1 low temperature hydrolysis tank 2, It is connect with the condensed water discharge port of interlayer connection with refluxing opening on hot-water tower on No. 2 low temperature hydrolysis tanks 3 and A/AD nitrating pot 4.

Temperature in No. 1 low temperature hydrolysis tank 2, No. 2 low temperature hydrolysis tanks 3 and A/AD nitrating pot 4 is by the temperature that is arranged in tank The electrically operated valve that the hot water that them are arranged in the control of controller 11 enters at port reaches temperature control work to adjust the inlet of hot water With the water consumed in hot-water tower is fed by tap water, is intake by water inlet 12, is drained by discharge outlet 13.Hot water is passed through No. 1 Low temperature hydrolysis tank, No. 2 low temperature hydrolysis tanks, A/AD nitrating pot interlayer, condensed water flow into again hot-water tower recycling.

The utility model can be embodied in the form of other are specific, but without departing from the protection model of the utility model It encloses, the protection scope of the utility model is defined only by the following claims.

Claims (7)

1. a kind of biochemical sludge processing equipment, it is characterised in that comprising: sewage sludge storage tank, No. 1 low temperature hydrolysis tank, No. 2 low temperature Hydrolytic decomposition pot, A/AD nitrating pot, quenched tank, mechanical dehydration machine and belt-type drying machine, wherein sewage sludge storage tank downstream is separately connected No. 1 Low temperature hydrolysis tank and No. 2 low temperature hydrolysis tanks, No. 1 low temperature hydrolysis tank and No. 2 low temperature hydrolysis tank downstreams are connect with A/AD nitrating pot, The quenched tank of A/AD nitrating pot downstream connection, quenched tank downstream connection mechanical dehydration machine, mechanical dehydration machine downstream connection belt-type drying Machine.

2. biochemical sludge processing equipment according to claim 1, wherein it is logical that compressed gas is arranged on the A/AD nitrating pot Inbound port.

3. biochemical sludge processing equipment according to claim 1, wherein the sewage sludge storage tank, No. 1 low temperature hydrolysis tank, 2 Blender is equipped in number low temperature hydrolysis tank, A/AD nitrating pot and quenched tank.

4. biochemical sludge processing equipment according to any one of claim 1-3, wherein further including hot-water tower, wherein No. 1 Low temperature hydrolysis tank, No. 2 low temperature hydrolysis tanks and A/AD nitrating pot are sandwich, the hot water outlet of hot-water tower and No. 1 low temperature Enter port with the hot water of interlayer connection on hydrolytic decomposition pot, No. 2 low temperature hydrolysis tanks and A/AD nitrating pot to connect, No. 1 low temperature hydrolysis tank, It is connect with the condensed water discharge port of interlayer connection with refluxing opening on hot-water tower on No. 2 low temperature hydrolysis tanks and A/AD nitrating pot.

5. biochemical sludge processing equipment according to claim 4, wherein No. 1 low temperature hydrolysis tank, No. 2 low temperature hydrolysis tanks and Temperature controller is set in A/AD nitrating pot, the hot water at them enters setting electrically operated valve at port, temperature controller and electricity The connection of movable valve signal.

6. biochemical sludge processing equipment according to claim 4, wherein the hot-water tower is equipped with water inlet and discharge outlet.

7. biochemical sludge processing equipment according to claim 4, wherein being equipped with heating wire in the hot-water tower.