CN204848611U - Mud preprocessing device - Google Patents
Mud preprocessing device Download PDFInfo
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- CN204848611U CN204848611U CN201520406212.XU CN201520406212U CN204848611U CN 204848611 U CN204848611 U CN 204848611U CN 201520406212 U CN201520406212 U CN 201520406212U CN 204848611 U CN204848611 U CN 204848611U
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- reaction vessel
- stir shaft
- pretreatment device
- mud
- sludge pretreatment
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Abstract
The utility model discloses a mud preprocessing device, including the reaction vessel that has closing inner cavity and install the agitating unit in the inner chamber, reaction vessel is equipped with feed inlet and discharge gate, and discharge gate department is equipped with and is used for pushing into strip or massive extrusion device with mud, has still installed supersonic generator on reaction vessel's the outer wall, this mud preprocessing device has simple structure, excellent in use effect, easily operation, can realize advantages such as serialization and automatic operation.
Description
Technical field
The utility model relates to environmental technology field, is specifically related to a kind of sludge pretreatment device.
Background technology
Along with town sewage generation and treatment capacity increase sharply, sewage sludge is as the by product in sewage treatment process, and its output is also increasing rapidly.Accumulative 444.6 billion cubic meters of disposing of sewage of national urban wastewater treatment firm in 2013,17,045 ten thousand ton per days will be reached to its processing power in 2015 according to " " 12 " national urban wastewater treatment and the planning of regeneration Facilities Construction ", the sludge yield expecting the year two thousand twenty China will reach 6,000 ten thousand tons ~ 9,000 ten thousand tons, at present, the average operating load rate of national sewage disposal device is about 84%.
Rate to improve organic melting in mud, shorten the sludge hydrolytic time, sludge pre-treatment techniques has become the focus of research both at home and abroad.The object of sludge pretreatment destroys the material that the structure of mud and thin property material are easily degraded, like this can not only accelerating system microorganism recessive growth and reduce sludge yield, also the organism discharged in born of the same parents can be used as carbon source, improve the effect of denitrogenation dephosphorizing, realize minimizing and the resource utilization of mud.
Pretreatment process conventional at present mainly contains chemical method (acid, alkaline purification, By Ozone), Physical (thermal treatment, mechanical treatment process) and biological process (ferment treatment method).Wherein, biological reinforced pre-treatment be add in mud there is specific function microorganism to improve anaerobic digestion performance of sludge, give full play to the potentiality of microorganism, simultaneously microorganism can change or destroy structure and the composition of mud flco.Adopt pre-treatment can change organic microorganism utilizability in mud on the one hand, overcome the deficiency of anaerobic digestion, improve the efficiency of anaerobic sludge digestion; On the other hand, pre-treatment can realize the minimizing of mud, is conducive to mud and is backfilled to refuse landfill or carries out burning disposal.
Utility model content
The technical problems to be solved in the utility model overcomes the deficiency that prior art exists, and provides that a kind of structure is simple, result of use good, easy handling, can realize the sludge pretreatment device of serialization and automated job.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of sludge pretreatment device, comprise the reaction vessel with closed inner chamber and the whipping appts be installed in described inner chamber, described reaction vessel is provided with opening for feed and discharge port, described discharge port is provided with the extrusion forming device for mud being squeezed into strip or bulk, and the outer wall of described reaction vessel is also equiped with ultrasonic generator.
Above-mentioned sludge pretreatment device, preferably, the rotary drive that described whipping appts comprises stir shaft and is connected with stir shaft, described stir shaft vertically stretches in inner chamber, stir shaft is provided with about two groups spaced apart agitating vanes, and the blade radius of one group of agitating vane above being positioned at and blade area are greater than blade radius and the blade area of the one group of agitating vane being positioned at below.
Above-mentioned sludge pretreatment device, preferably, the quantity of each group agitating vane is two, and two agitating vanes of same group are arranged respectively to the both sides extension of stir shaft, and the arranged direction of upper and lower two groups of agitating vanes is mutually vertical.
Above-mentioned sludge pretreatment device, preferably, the inner chamber of described reaction vessel is back taper build.
Above-mentioned sludge pretreatment device, preferably, described discharge port is positioned at immediately below stir shaft, and the lower end of described stir shaft is provided with outside screw.
Above-mentioned sludge pretreatment device, preferably, described ultrasonic generator is provided with two altogether, and two ultrasonic generators are divided into the relative both sides on reaction vessel outer wall.
Compared with prior art, the utility model has the advantage of: sludge pretreatment device of the present utility model, reaction vessel and extrusion forming device are become one, whipping appts and ultrasonic generator are set simultaneously, be convenient to stir in sludge fermentation process and carry out ultrasonic assistant fermentation, can greatly improve fermentation efficiency and reaction effect, this sludge pretreatment device can realize serialization, automated job, its structure is simple, result of use good, easy handling, all has certain promoter action to the industrialization of sludge anhydration burning and recycling sludge process.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model sludge pretreatment device.
Marginal data:
1, reaction vessel; 11, inner chamber; 12, opening for feed; 13, discharge port; 2, whipping appts; 21, stir shaft; 211, outside screw; 22, rotary drive; 23, agitating vane; 3, extrusion forming device; 4, ultrasonic generator.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 shows a kind of embodiment of the utility model sludge pretreatment device, this sludge pretreatment device comprises the reaction vessel 1 with closed inner chamber 11 and the whipping appts 2 be installed in inner chamber 11, reaction vessel 1 is provided with opening for feed 12 and discharge port 13, discharge port 13 place is provided with the extrusion forming device 3 for mud being squeezed into strip or bulk, and the outer wall of reaction vessel 1 is also equiped with ultrasonic generator 4.Wherein, ultrasonic generator 4 is provided with two altogether, and two ultrasonic generators 4 are divided into the relative both sides on reaction vessel 1 outer wall, and above-mentioned extrusion forming device 3 and ultrasonic generator 4 all can adopt prior art.
In the present embodiment, the rotary drive 22 that whipping appts 2 comprises stir shaft 21 and is connected with stir shaft 21, stir shaft 21 vertically stretches in inner chamber 11, the optional motor of rotary drive 22, motor is arranged on the top of reaction vessel 1, stir shaft 21 is provided with about two groups spaced apart agitating vanes 23, the blade radius of one group of agitating vane 23 above being positioned at and blade area are greater than blade radius and the blade area of the one group of agitating vane 23 being positioned at below, and the quantity of each group agitating vane 23 is two, two agitating vanes 23 of same group are arranged respectively to the both sides extension of stir shaft 21, and the arranged direction of upper and lower two groups of agitating vanes 23 is mutually vertical.The mud that the whipping appts 2 of this kind of structure is conducive in reaction vessel 1 forms spirrillum in whipping process, makes mud fully contact with other raw materials, react.
In the present embodiment, the inner chamber 11 of reaction vessel 1 is in back taper build.Discharge port 13 is positioned at immediately below stir shaft 21, and the lower end of stir shaft 21 is provided with outside screw 211, is conducive to mud and enters extrusion forming device 3 and complete extrusion molding.
Adopt a sludge pre-treatment method for above-mentioned sludge pretreatment device, comprise the following steps:
(1) by water ratio be more than 80% mud, bamboo powder, plant refuse and biotechnological formulation be by (78 ~ 88): (10 ~ 14): (2.5 ~ 4.8): the mass ratio mixing of (0.5 ~ 1) adds in reaction vessel 1 60 ~ the 75min that ferments, adopt whipping appts 2 pairs of mixtures to stir during the fermentation, adopt ultrasonic wave to carry out assisted fermentation simultaneously; Wherein, hyperacoustic frequency is 15 ~ 20kHz, and ultrasonic wave acoustic energy density is 0.04 ~ 0.06W/cm
2, the time of ultrasonic assistant fermentation is 10 ~ 20min;
(2) be the strip that 12cm grows by the mud extrusion molding after fermentation, then strip mud is paved, spontaneous fermentation, air-dry.
The granular size of above-mentioned bamboo powder is 80 ~ 140 orders, can reach optimum fermentation reaction effect.Biotechnological formulation main component is high temperature-resistant acid-resistant milk-acid bacteria and yeast bacterium liquid, by the Degradation of milk-acid bacteria, the repugnant substance decomposition and inversion in mud can be become CO
2, H
2o, N
2, the innoxious substance such as vitriol, and a large amount of beneficial flora such as the milk-acid bacteria contained in biotechnological formulation can suppress pernicious bacteria effectively, reduce disease and pest, the organic acid that profitable strain is produced in addition can dissolve phosphoric acid salt in mud and calcium, improves the fertilizer efficiency of mud.
Present method also comprises the step processed further by the mud after air-dry in step (2), the step of further process can be specifically by the Sludge landfill after air-dry or anhydration and incineration, or the sludge treatment after air-dry is become bio-feritlizer and soil improvement agent, using pretreated mud as biological organic fertilizer raw material, except organic low, non-fermentation maturity can be solved, easily stink of, ammonia is highly seasoned smokes except problem that in extremely short crop, packing bag, continuation is turned white, effectively can also improve soil and promote plant growth, there is good effect of fertilizer.The step of above-mentioned further process is generally at sludge air drying 15 days laggard row relax.
Above-mentioned sludge pre-treatment method adopts ultrasonic wave to carry out assisted fermentation during the fermentation, first, low-intensity ultrasonic relies on mechanical vibration and stable cavitation effect to make mass transfer frictional belt thinning, and solute particles motion is accelerated, this enters enzyme or cytoactive position and product for reactant, and to enter the mass transfer diffusion of liquid medium favourable, can improve biological respinse speed; Meanwhile, miniflow in born of the same parents, intracytoplasmic rotation and vortex motion can be produced when suitable low-intensity ultrasonic acts on animal and plant cells, also improve the penetrance of cytolemma and cell walls.These effects above-mentioned can improve the metabolic function of cell, therefore, adopt the ul-trasonic irradiation of proper strength in fermenting process, membrane passage and selectivity can be increased, strengthen the metabolic process of cell, thus shorten fermentation time, improve biological respinse condition, improve the quality of fermentation, accelerate sludge pre-treatment process.During the fermentation mixture is stirred, stirring action is a kind of mechanical pretreatment mode, the extracellular polymeric utilizing the shearing force produced in mechanical processes to destroy mud wraps up and sludge bacteria somatocyte cell wall (film), organism in release born of the same parents, is more conducive to the fermentation of mud.
The above is only preferred implementation of the present utility model, and protection domain of the present utility model is also not only confined to above-described embodiment.For those skilled in the art, do not departing from the improvement that obtains under the utility model technical conceive prerequisite and conversion also should be considered as protection domain of the present utility model.
Claims (6)
1. a sludge pretreatment device, it is characterized in that: comprise the reaction vessel (1) with closed inner chamber (11) and the whipping appts (2) be installed in described inner chamber (11), described reaction vessel (1) is provided with opening for feed (12) and discharge port (13), described discharge port (13) is provided with the extrusion forming device (3) for mud being squeezed into strip or bulk, the outer wall of described reaction vessel (1) is also equiped with ultrasonic generator (4).
2. sludge pretreatment device according to claim 1, it is characterized in that: the rotary drive (22) that described whipping appts (2) comprises stir shaft (21) and is connected with stir shaft (21), described stir shaft (21) vertically stretches in inner chamber (11), stir shaft (21) is provided with about two groups spaced apart agitating vanes (23), and the blade radius of one group of agitating vane (23) above being positioned at and blade area are greater than blade radius and the blade area of the one group of agitating vane (23) being positioned at below.
3. sludge pretreatment device according to claim 2, it is characterized in that: the quantity respectively organizing agitating vane (23) is two, two agitating vanes (23) of same group are arranged respectively to the both sides extension of stir shaft (21), and the arranged direction of upper and lower two groups of agitating vanes (23) is mutually vertical.
4. sludge pretreatment device according to claim 2, is characterized in that: the inner chamber (11) of described reaction vessel (1) is in back taper build.
5. sludge pretreatment device according to claim 2, is characterized in that: described discharge port (13) is positioned at immediately below stir shaft (21), and the lower end of described stir shaft (21) is provided with outside screw (211).
6. sludge pretreatment device according to any one of claim 1 to 5, it is characterized in that: described ultrasonic generator (4) is provided with two altogether, two ultrasonic generators (4) are divided into the relative both sides on reaction vessel (1) outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520406212.XU CN204848611U (en) | 2015-06-12 | 2015-06-12 | Mud preprocessing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520406212.XU CN204848611U (en) | 2015-06-12 | 2015-06-12 | Mud preprocessing device |
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| Publication Number | Publication Date |
|---|---|
| CN204848611U true CN204848611U (en) | 2015-12-09 |
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ID=54739183
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520406212.XU Expired - Fee Related CN204848611U (en) | 2015-06-12 | 2015-06-12 | Mud preprocessing device |
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| CN (1) | CN204848611U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104876413A (en) * | 2015-06-12 | 2015-09-02 | 长沙威保特环保科技股份有限公司 | Sludge pretreatment method and device |
| CN116371340A (en) * | 2023-05-24 | 2023-07-04 | 兰州理工大学 | Reaction kettle with synthetic jet flow |
-
2015
- 2015-06-12 CN CN201520406212.XU patent/CN204848611U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104876413A (en) * | 2015-06-12 | 2015-09-02 | 长沙威保特环保科技股份有限公司 | Sludge pretreatment method and device |
| CN116371340A (en) * | 2023-05-24 | 2023-07-04 | 兰州理工大学 | Reaction kettle with synthetic jet flow |
| CN116371340B (en) * | 2023-05-24 | 2024-03-12 | 兰州理工大学 | Reaction kettle with synthetic jet flow |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 410000 Hunan province Changsha Changsha city high tech Development Zone No. 166 yuan Lu Valley R & D Office No. 101 three floor Patentee after: HUNAN BG WELL-POINT ENVIRONMENTAL SCIENCE & TECHNOLOGY CO.,LTD. Address before: 410000, 5 floor, Xintiandi building, No. 319 Jinxing Road, Changsha, Hunan, Yuelu District Patentee before: CHANGSHA WELL-POINT ENVIRONMENT PROTECTION SCIENCE & TECHNOLOGY CO.,LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 |