CN202415331U - Pretreatment system for anaerobic digestion of dewatered sludge - Google Patents
Pretreatment system for anaerobic digestion of dewatered sludge Download PDFInfo
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- CN202415331U CN202415331U CN2011203402959U CN201120340295U CN202415331U CN 202415331 U CN202415331 U CN 202415331U CN 2011203402959 U CN2011203402959 U CN 2011203402959U CN 201120340295 U CN201120340295 U CN 201120340295U CN 202415331 U CN202415331 U CN 202415331U
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- mud
- sludge
- adjustment pond
- anaerobic digestion
- settling tank
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Abstract
The utility model relates to the technical field of concentrated scale anaerobic digestion treatment of dewatered sludge (about 80 percent of municipal sludge). According to a pretreatment device for anaerobic digestion of dewatered sludge, one end of a sludge receiving trough is communicated with a sludge initial settling tank; a liquid level controller and a stirrer are arranged in the sludge initial settling tank; a submersible sewage pump is arranged at the bottom of the sludge initial settling tank and is in pipeline communication with a sludge fine settling tank; a stirrer and a steam heater are arranged in the sludge fine settling tank; a temperature controller is also arranged in the sludge fine settling tank; and a discharge opening of the sludge fine settling tank is communicated with an anaerobic digestion tower through a material conveying pump and a conveying pipeline. According to the pretreatment device disclosed by the utility model, the sludge receiving trough and the sludge initial settling tank are basically and integrally arranged; the pretreatment device is compact in structure, properly-complete in function and small in occupied area; and more importantly, a slope type receiving trough slides and transfers to the sludge initial settling tank by means of gravity of the sludge and further the investment and operation costs of power transmitting equipment are saved.
Description
Technical field
The utility model belongs to dewatered sludge and concentrates the mass-producing processing technology field, in particular, belongs to a kind of pre-treatment of dewatered sludge anaerobic digestion.
Background technology
Mud is city or regional sewage work when disposing of sewage, and the enriched material that comes out from the water body precipitate and separate is thickness mud again after dehydration.At home, this mud generally dewaters to solid content about 20%, contains more organism and mikrobe remains, breath malodor, mobile poor in this mud, is difficult to characteristics such as storage.In the past, domestic the greater part is all with the direct sanitary landfill of mud.Through long-time deposition, volatilization, these mud form the difficult colloid that decomposes, and cause landfill yard paludification phenomenon serious.The landfill site seepage prevention grade is low before adding, and very easily causes surface water, phreatic pollution.For separating this problem.Domestic each city or area are established one after another and are concentrated sludge treatment factory.Various method for sludge treatment arise at the historic moment.
Waste residue that the residue biogas that produces behind the mud can be used as fuel energy, generation is processed greening soil or farming is fertile because anaerobic digestion is handled, and the treatment process that this utilize waste and save energy reduces discharging meets the low-carbon energy-saving environmental protection concept of current promotion and receives pushing away and dote on.But Anaerobic Digestion has certain requirement, particularly moisture percentage in sewage sludge and temperature etc. for the Anaerobic Digestion effect influence in various degree to be arranged for raw sludge.Could get into the anaerobism operation after concentrating the mud that ships to pass through processes such as thin up stirring and heat temperature raising.Be used for transporting the large-scale dumper truck of the common employing of car of mud; If being entered mud initial adjustment pond (to call the initial adjustment pond in the following text), the direct overturning of mud can damage equipment and measuring instruments such as stirrer in the mud initial adjustment pond, so generally be that the position of unloading is left mud initial adjustment pond and established a mud receiver in addition.Design which type of mud receiver and how again mud to be transferred to mud initial adjustment pond different ways is arranged.Domestic and international known method is that the mud receiver is designed to underground flat pan, and bottom land is installed the platoon worm conveyor, pours in the groove when mud, starts the platoon worm conveyor mud is pushed in the mud initial adjustment pond.But that the defective of doing like this is facility investment is many, power () consume big, the mud transport velocity is slow.
Summary of the invention
The purpose of the utility model provides a kind of preprocessing system of dewatered sludge anaerobic digestion, system compact and perfect in shape and function, and floor space is little, and cost of investment is low, and processing power is strong, satisfies " Anaerobic Digestion technology " characteristic requirements to material.
The utility model for realizing the technical scheme that above-mentioned purpose adopted is: a kind of preprocessing system of dewatered sludge anaerobic digestion; Comprise mud receiver, mud initial adjustment pond and mud accurate adjustment pond; Mud receiver one end is communicated with mud initial adjustment pond; The mud initial adjustment is equipped with fluid level controller and stirrer in the pond, and submersible sewage pump is laid in the bottom, submersible sewage pump pipeline connection mud accurate adjustment pond; The mud accurate adjustment is equipped with stirrer and steam heater in the pond, and temperature regulator also is installed in addition, and mud accurate adjustment pond discharge port is communicated with the anaerobic digestion tower through material-handling pump and transfer line.
Between said mud accurate adjustment pond discharge port and the material-handling pump material crusher is installed.
Be separately installed with fluid level controller in said mud initial adjustment pond and the accurate adjustment pond.
Said mud receiver mainly is made up of two side and bottom surface, and top material pour spout has the beam of keeping off a car near the one side of car, and the bottom surface is ramped shaped, and sloping shape bottom surface directly is communicated with mud initial adjustment pond.
Said mud receiver and junction, mud initial adjustment pond are upright to the buffering grid is set; Said buffering grid is the grid that adopts metallic substance to process, and the grizzly bar gap is according to the mud cohesive strength and will tackle solid sundries size setting in the mud.
The domatic the top of said mud receiver is provided with water jet standpipe, and water jet standpipe adopts the perforated tube of horizontal positioned, and perforate is towards the bottom surface; Said mud receiver middle upper part is provided with the flexible pipe that discharges water, and the flexible pipe upper end that discharges water is fixing, and the lower end can freely swing.
Said bottom surface domaticly tilts to mud initial adjustment pond horizontal by 30 °～45 °.
The two side of said mud receiver exceeds suitable for reading.Said mud receiver is suitable for reading to be lower than railway carriage and to be underground or semi-underground groove.Smooth material of construction such as ceramic tile are laid in said bottom surface.
The utility model mud receiver and mud initial adjustment pond are basically and are wholely set, compact construction, and perfect in shape and function is just right; Floor space is little; The more important thing is the receiver of ramp type, lean on mud gravity slumping to transfer to mud initial adjustment pond, saved facility investment and running cost that power is carried;
Because concentrate transportation mud car to come one after another, the mud car is toppled over the mud that gets off must transfer to the accurate adjustment pond with mud rapidly after accomplishing the preliminarily diluted fluidization; The preliminarily diluted that the chute type of mud receiver shifts mud and initial adjustment pond fast shifts fast to be and satisfies material cycling and require to design;
The accurate adjustment operation is made up of accurate adjustment pond, material crusher, material conveyor.The accurate adjustment pond need possess big reserve capabillity, and stirrer, steam heater, liquid level control and temperature regulator are set in the mud accurate adjustment pond.The concentration of mud accurate adjustment pond completion mud is allocated, is stirred and mud is heated to certain temperature, at last mud is transported to the anaerobic digestion tower; Satisfy of the requirement of Anaerobic Digestion technology to the charging rerum natura.Here, the regulation and control of concentration and temperature utilize on-line detecting system, PLC, the chain automatic control of performer.
The installing material crusher makes fiber impurity in the mud avoided causing the obstruction of material conveyor and transfer line, valve by chopping between mud accurate adjustment pond discharging and the material conveyor.The utlity model has advantages such as technology is simple and direct effectively, the equipment configuration is reasonable, mass transport is smooth, operation energy consumption is low, become the most reasonably process matched therewith of Anaerobic Digestion dewatered sludge.
Description of drawings
Fig. 1 is the system architecture synoptic diagram of the utility model.
Wherein: mud receiver-1, mud initial adjustment pond-2, fluid level controller-3, stirrer-4, submersible sewage pump-5; Mud accurate adjustment pond-6, stirrer-7, steam heater-8, fluid level controller-9, temperature regulator-10, material crusher-11, material-handling pump-12, anaerobic digestion tower-13, buffering grid-14, water jet standpipe-15, the flexible pipe that discharges water-16, the beam of keeping off a car-17.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further explain, but the utility model is not limited to specific embodiment.
Embodiment 1
A kind of preprocessing system of dewatered sludge anaerobic digestion; Comprise mud receiver, mud initial adjustment pond and mud accurate adjustment pond, mud receiver lower end is communicated with mud initial adjustment pond, and stirrer and fluid level controller 3 are installed in the mud initial adjustment pond; Submersible sewage pump is laid in the bottom; Submersible sewage pump pipeline connection mud accurate adjustment pond is equipped with stirrer and steam heater 8 in the mud accurate adjustment pond, temperature regulator 10 and fluid level controller 9 also are installed in addition; Mud accurate adjustment pond discharge port is communicated with the anaerobic digestion tower through material-handling pump 12 and transfer line, between mud accurate adjustment pond discharge port and the material-handling pump 12 material crusher 11 is installed; Wherein the mud receiver mainly is made up of two side and bottom surface; Top material pour spout has the beam 17 of keeping off a car near the one side of car; The bottom surface is ramped shaped, and the bottom surface domaticly tilts to mud initial adjustment pond horizontal by 30 °～45 °, and smooth material of construction such as ceramic tile are laid in the bottom surface; Shape bottom surface, slope directly is communicated with mud initial adjustment pond, and mud receiver and junction, mud initial adjustment pond are upright to buffering grid 14 is set; The buffering grid adopts metallic substance to process, and the grizzly bar gap is according to the mud cohesive strength and will tackle solid sundries size setting in the mud.The domatic the top of mud receiver is provided with water jet standpipe 15, and water jet standpipe adopts the perforated tube of horizontal positioned, and perforate is towards the bottom surface; Mud receiver middle upper part is provided with the flexible pipe 16 that discharges water, and the flexible pipe upper end that discharges water is fixing, and the lower end can freely swing.The two side of mud receiver exceeds suitable for reading, and the mud receiver is suitable for reading to be lower than railway carriage and to be underground or semi-underground groove.
When adopting the preprocessing system of 1 one kinds of dewatered sludge anaerobic digestions of embodiment to carry out the mud pre-treatment, comprise that specifically mud just is in harmonious proportion mud accurate adjustment step:
The mud initial adjustment: the mud transport trolley is poured into mud and is slipped in the mud initial adjustment pond 2 in the mud receiver 1 that is ramp-like; Mud is controlled by online liquid level in initial adjustment pond 2 and adds gauge water preliminarily diluted (being lower than ultimate density); Stirrer 4 stirring mud and dilution water make to mix and are fluidization in the initial adjustment pond 2; Mud was delivered to accurate adjustment pond 6 after submersible sewage pump 5 will dilute in the initial adjustment pond 2, and wherein the start-stop of submersible sewage pump receives the restriction of online liquid level control in the accurate adjustment pond;
The mud accurate adjustment: mud is formulated to ultimate density (5%～12%) in accurate adjustment pond 6; Mud arrives in the anaerobic digestion special process TR through steam heating in accurate adjustment pond 6, like digestion temperature 30-45C
oIn allotment sludge concentration and steam heating process, start that stirrer fully stirs in the accurate adjustment pond, make the mud temperature of sludge concentration and different sites reach balanced consistent after, be transported to the sludge anaerobic tower by material-handling pump.The winding of fiber-like impurity causes material-handling pump or valve blockage in the mud in order to avoid, and between accurate adjustment pond discharge port and material-handling pump, installs material crusher, with fiber-like impurity chopping in the mud.
Claims (7)
1. the preprocessing system of a dewatered sludge anaerobic digestion; Comprise mud receiver (1), mud initial adjustment pond (2) and mud accurate adjustment pond (6); It is characterized in that: mud receiver one end is communicated with mud initial adjustment pond; Fluid level controller (3) and stirrer (4) are installed in the mud initial adjustment pond, and submersible sewage pump (5) is laid in the bottom, submersible sewage pump pipeline connection mud accurate adjustment pond (6); Stirrer (7) and steam heater (8) are installed in the mud accurate adjustment pond, go back mounting temperature unit (10) in addition, mud accurate adjustment pond discharge port is communicated with anaerobic digestion tower (13) through material-handling pump (12) and transfer line.
2. the preprocessing system of dewatered sludge anaerobic digestion according to claim 1 is characterized in that: between said mud accurate adjustment pond discharge port and the material-handling pump (12) material crusher (11) is installed.
3. the preprocessing system of dewatered sludge anaerobic digestion according to claim 1 is characterized in that: be separately installed with fluid level controller in said mud initial adjustment pond and the accurate adjustment pond.
4. according to the preprocessing system of the arbitrary described dewatered sludge anaerobic digestion of claim 1-3; It is characterized in that: said mud receiver mainly is made up of two side and bottom surface; Top material pour spout has the beam of keeping off a car near the one side of car; The bottom surface is ramp-like base, and the slope end one end is communicated with mud initial adjustment pond.
5. the preprocessing system of dewatered sludge anaerobic digestion according to claim 4 is characterized in that: said mud receiver and mud initial adjustment Chi Liantongkouchu are upright to the buffering grid is set; The buffering grid that said buffering grid adopts metallic substance to process.
6. the preprocessing system of dewatered sludge anaerobic digestion according to claim 4 is characterized in that: said mud receiver bottom surface is provided with water jet standpipe topmost, and water jet standpipe adopts the perforated tube of horizontal positioned, and perforate is towards the bottom surface; Said mud receiver middle upper part is provided with the flexible pipe that discharges water, and the flexible pipe upper end that discharges water is fixing, and the lower end can freely swing.
7. the preprocessing system of dewatered sludge anaerobic digestion according to claim 4 is characterized in that: said mud receiver bottom surface domaticly tilts to mud initial adjustment pond horizontal by 30 °～45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203402959U CN202415331U (en) | 2011-09-13 | 2011-09-13 | Pretreatment system for anaerobic digestion of dewatered sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203402959U CN202415331U (en) | 2011-09-13 | 2011-09-13 | Pretreatment system for anaerobic digestion of dewatered sludge |
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| Publication Number | Publication Date |
|---|---|
| CN202415331U true CN202415331U (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203402959U Expired - Lifetime CN202415331U (en) | 2011-09-13 | 2011-09-13 | Pretreatment system for anaerobic digestion of dewatered sludge |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102351391A (en) * | 2011-09-13 | 2012-02-15 | 大连力达环境工程有限公司 | Dewatered sludge anaerobic digestion pretreatment process and system |
| CN107739092A (en) * | 2017-11-30 | 2018-02-27 | 重庆三峰环境产业集团有限公司 | A kind of anaerobic reaction heater and its heating means |
| CN110395798A (en) * | 2019-08-19 | 2019-11-01 | 浙江天地环保科技有限公司 | A kind of automatic homogenization device of livestock and poultry feces biogas project and method |
-
2011
- 2011-09-13 CN CN2011203402959U patent/CN202415331U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102351391A (en) * | 2011-09-13 | 2012-02-15 | 大连力达环境工程有限公司 | Dewatered sludge anaerobic digestion pretreatment process and system |
| CN102351391B (en) * | 2011-09-13 | 2013-06-19 | 大连力达环境工程有限公司 | Dewatered sludge anaerobic digestion pretreatment process and system |
| CN107739092A (en) * | 2017-11-30 | 2018-02-27 | 重庆三峰环境产业集团有限公司 | A kind of anaerobic reaction heater and its heating means |
| CN110395798A (en) * | 2019-08-19 | 2019-11-01 | 浙江天地环保科技有限公司 | A kind of automatic homogenization device of livestock and poultry feces biogas project and method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |