阅读说明：本技术 一种污泥脱水处理系统及污泥处理方法 (Sludge dewatering treatment system and sludge treatment method ) 是由 韩彦明 许高峰 田小娟 范博辉 范利国 于 2021-09-01 设计创作，主要内容包括：本发明公开一种污泥脱水处理系统及污泥处理方法,涉及污泥处理工艺领域,包括：污泥储存仓、粉状处理剂储存仓、颗粉状吸附材料储存仓以及搅拌器,污泥储存仓与搅拌器相连通,粉状处理剂储存仓与颗粉状吸附材料储存仓均与混合器相连通,混合器将粉状处理剂与颗粉状吸附材料进行混合形成混合料,混合器的出料口与搅拌器相连通；本发明中利用颗粉状吸附材料先行与粉状处理剂进行混合,使处理剂均匀分散到混合料中,当混合料进入搅拌器内与污泥进行混合时,处理剂以一种较为分散的状态与污泥进行混合,增加了处理剂与污泥的接触面积,再配合搅拌器的搅拌打散作用,可以很快的使处理剂均匀的分散到污泥内,提高了污泥的处理效率。(The invention discloses a sludge dewatering treatment system and a sludge treatment method, which relate to the field of sludge treatment processes and comprise the following steps: the sludge storage bin is communicated with the stirrer, the powdery treating agent storage bin and the powdery adsorbing material storage bin are both communicated with the mixer, the mixer mixes the powdery treating agent and the powdery adsorbing material to form a mixture, and a discharge port of the mixer is communicated with the stirrer; according to the invention, the powdery adsorbing material is firstly mixed with the powdery treating agent, so that the treating agent is uniformly dispersed into the mixture, when the mixture enters the stirrer to be mixed with the sludge, the treating agent is mixed with the sludge in a relatively dispersed state, the contact area of the treating agent and the sludge is increased, and the treating agent can be rapidly uniformly dispersed into the sludge by matching with the stirring and scattering effect of the stirrer, so that the treatment efficiency of the sludge is improved.)

1. The utility model provides a sludge dewatering processing system, its characterized in that stores storehouse, likepowder treating agent storage storehouse, likepowder adsorption material storage storehouse and agitator including mud, mud store the storehouse with the agitator is linked together, likepowder treating agent storage storehouse and likepowder adsorption material storage storehouse all are linked together with the blender, and the blender mixes likepowder treating agent and likepowder adsorption material and forms the mixture, the discharge gate of blender with the agitator is linked together, the agitator is stirred mud and mixture and is broken up the back output.

2. The sludge dewatering treatment system according to claim 1, wherein the sludge storage bin is in communication with the agitator via a screw conveyor, the powdery treating agent storage bin and the powdery adsorbing material storage bin are both in communication with a mixer via a screw conveyor, and a discharge port of the mixer is in communication with the agitator via a screw conveyor.

3. The sludge dewatering treatment system according to claim 2, wherein a mixture storage bin is further provided between the mixer and the agitator, the discharge port of the mixer is communicated with the mixture storage bin through a screw conveyor, and the mixture storage bin is communicated with the agitator through the screw conveyor.

4. The sludge dewatering treatment system of claim 3, further comprising an intelligent control platform, wherein the screw conveyor is electrically connected to the intelligent control platform.

5. The sludge dewatering treatment system according to claim 1, wherein the powdery treatment agent storage bin, the powdery adsorption material storage bin and the mixture storage bin are all conical structures, a feeding port is formed in each conical structure, and the powdery treatment agent storage bin, the powdery adsorption material storage bin and the mixture storage bin are all subjected to corrosion and water prevention treatment.

6. The sludge dewatering treatment system according to claim 5, wherein the sludge storage bin is a conical structure with an open vent and a feed inlet, and the sludge storage bin is subjected to corrosion prevention treatment.

7. The sludge dewatering treatment system according to claim 1, wherein the agitator is a horizontal two-shaft or multi-shaft agitation system.

8. The sludge dewatering treatment system according to claim 1, wherein the powder adsorbing material is humic acid, furfural residue, furnace ash residue, coal gangue, furnace ash or coal powder.

9. A sludge treatment method of a sludge dewatering treatment system is characterized by comprising the following steps:

s1: manually starting screw conveyors at all levels through an intelligent control platform, conveying sludge in a sludge storage bin into a stirrer, conveying a powdery treating agent in a powdery treating agent storage bin and a powdery adsorbing material in a powdery adsorbing material storage bin into the mixer for mixing to form a powdery mixture, uniformly dispersing the powdery treating agent in the mixture, and conveying the mixture into a mixture storage bin through the screw conveyors after the mixing is finished;

s2: conveying the mixture in the mixture storage bin into a stirrer through a screw conveyor, fully stirring and scattering the sludge and the mixture by a horizontal double-shaft or multi-shaft stirring system in the stirrer, wherein in the stirring and scattering process, the powdery treating agent is fully contacted with the sludge to change the bound water in the sludge into free water, and the free water is absorbed by the powdery adsorbing material;

s3: the stirrer outputs the mixture after being stirred and broken, the mixture is in a uniform and scattered granular and powder mixture, and the mixture is directly applied according to the components of the granular and powder adsorbing materials.

10. The sludge treatment method according to claim 9, wherein in steps S1 and S2, the intelligent control platform controls the feeding speed and the rotating speed of the stirrer at each stage to realize the uninterrupted sludge treatment, or the intelligent control platform intermittently controls the sludge output in the sludge storage bin and intermittently controls the mixture output in the mixture storage bin to realize the intermittent sludge treatment.

Technical Field

The invention relates to the field of sludge treatment processes, in particular to a sludge dewatering treatment system and a sludge treatment method.

Background

Sludge (sludge) is solid sediment produced in the process of water and sewage treatment, the sludge is a product after sewage treatment, and is a very complex heterogeneous body consisting of organic residues, bacterial thalli, inorganic particles, colloids and the like, because microorganisms in the sludge continuously consume organic substances in the wastewater, one part of the consumed organic substances are oxidized to provide energy required by the life activities of the microorganisms, the other part of the organic substances are utilized by the microorganisms to synthesize new cytoplasm, so that the microorganisms multiply and reproduce, and a part of old microorganisms die while the microorganisms are metabolized, so that the sludge is produced, and the sludge has the main characteristics of high water content, high organic matter content, easy decomposition and odor, fine particles, small specific gravity and colloidal liquid state, and is a thick substance between liquid and solid, it can be transported by a pump, but it is difficult to perform solid-liquid separation by settling.

The current common sludge dewatering methods in the market are the following two methods: firstly, a sludge medicament conditioning and mechanical dehydration technology is adopted, a sludge conditioner is added into wet sludge to destroy the microbial structure of sludge flocs and dissolve the sludge, most of bound water of the sludge is converted into free-state water, the free water is separated by mechanical filter pressing dehydration equipment, odor and sewage are generated in the treatment process, the sewage needs secondary treatment, and the odor needs a special treatment device, so that the method has high operating cost and low treatment efficiency; secondly, the heat drying technology removes the moisture in the sludge through the heat transfer effect between the sludge and the heating medium, and the current sludge drying machine has: fluidized bed, cylinder, belt, rotary disc, paddle, convection and turbine film drier, etc, the method produces a great deal of steam and odor, needs recovery treatment, the method has large investment, high energy consumption and high operation cost;

for example, the invention patent with the application number of '201811489854.5' and the name of 'a sludge treatment agent and a sludge treatment method' discloses a method for treating sludge by using sludge agent conditioning and mechanical dehydration technology, which comprises the following steps: sludge treatment agent is added into the sludge to pretreat the sludge; the method comprises the steps of dewatering pretreated sludge, adding a flocculating agent into the pretreated sludge, stirring, kneading into a ball shape, and placing the ball in a ventilation environment, wherein the steps are complex, the used amount of the flocculating agent is less relative to the amount of the sludge during sludge treatment, and after the flocculating agent is added into the sludge, the flocculating agent needs to be stirred and uniformly mixed in the sludge, but the flocculating agent initially becomes one strand, the contact area of the flocculating agent and the sludge is smaller, the uniform distribution can be realized through long-time stirring, the system energy consumption and the treatment time are greatly increased, in addition, the sludge after the treatment is finished is only dewatered, and the sludge needs to be mixed with other substances to realize the resource utilization of the sludge.

The invention patent with the application number of 201611003502.5 and the name of 'a dehydration method for sewage treatment sludge' discloses a method for treating sludge by utilizing a heat drying technology, which comprises the following steps: s1, putting the sludge which is not dewatered into high-speed stirring equipment, adding a pH regulator to regulate the pH value of the sludge, heating while stirring at high speed, and then keeping the temperature and standing; s2, filtering the sewage sludge after standing by using a filter, and performing primary dehydration treatment to obtain dehydrated sludge; s3, adding the dewatered sludge into a roller type dryer, carrying out hot air circulation drying, and controlling the drying time to obtain the sludge with the required water content, wherein the sludge needs to be heated and stirred simultaneously, so that the sludge treatment cost is greatly improved, and the dewatered sludge after the treatment is only required to be mixed with other substances to realize the resource utilization of the sludge.

Therefore, a sludge dewatering treatment system with high treatment efficiency is needed.

Disclosure of Invention

The invention aims to provide a sludge dewatering treatment system and a sludge treatment method, which are used for solving the problems in the prior art and improving the sludge treatment efficiency.

In order to achieve the purpose, the invention provides the following scheme: the invention provides a sludge dewatering treatment system which comprises a sludge storage bin, a powdery treating agent storage bin, a powdery adsorbing material storage bin and a stirrer, wherein the sludge storage bin is communicated with the stirrer, the powdery treating agent storage bin and the powdery adsorbing material storage bin are both communicated with the mixer, the mixer mixes a powdery treating agent and the powdery adsorbing material to form a mixture, a discharge hole of the mixer is communicated with the stirrer, and the stirrer stirs and scatters the sludge and the mixture and outputs the sludge and the mixture.

Preferably, the sludge storage bin is communicated with the stirrer through a screw conveyer, the powdery treating agent storage bin and the powdery adsorbing material storage bin are communicated with the mixer through screw conveyers, and a discharge port of the mixer is communicated with the stirrer through a screw conveyer.

Preferably, a mixture storage bin is further arranged between the mixer and the stirrer, a discharge port of the mixer is communicated with the mixture storage bin through a screw conveyor, and the mixture storage bin is communicated with the stirrer through the screw conveyor.

Preferably, the intelligent control device further comprises an intelligent control platform, and the spiral conveyor is electrically connected with the intelligent control platform.

Preferably, the storehouse is stored to powdery treating agent the storehouse is stored to likepowder adsorption material and the storehouse is stored to the mixture is conical structure, the structural pan feeding mouth of having seted up of conical, the storehouse is stored to likepowder treating agent the storehouse is stored to likepowder adsorption material and the storehouse is stored to the mixture all carries out anticorrosive water-proof treatment.

Preferably, the sludge storage bin is of a conical structure, an open vent and a feed inlet are formed in the sludge storage bin, and the sludge storage bin is subjected to anti-corrosion treatment.

Preferably, the stirrer adopts a horizontal double-shaft or multi-shaft stirring system.

Preferably, the powder adsorbing material is humic acid, furfural residues, furnace ash residues, coal gangue, furnace ash or coal powder.

The invention also provides a sludge treatment method of the sludge dewatering treatment system, which comprises the following steps:

s1: manually starting screw conveyors at all levels through an intelligent control platform, conveying sludge in a sludge storage bin into a stirrer, conveying a powdery treating agent in a powdery treating agent storage bin and a powdery adsorbing material in a powdery adsorbing material storage bin into the mixer for mixing to form a powdery mixture, uniformly dispersing the powdery treating agent in the mixture, and conveying the mixture into a mixture storage bin through the screw conveyors after the mixing is finished;

s2: conveying the mixture in the mixture storage bin into a stirrer through a screw conveyor, fully stirring and scattering the sludge and the mixture by a horizontal double-shaft or multi-shaft stirring system in the stirrer, wherein in the stirring and scattering process, the powdery treating agent is fully contacted with the sludge to change the bound water in the sludge into free water, and the free water is absorbed by the powdery adsorbing material;

s3: the stirrer outputs the mixture after being stirred and broken, the mixture is in a uniform and scattered granular and powder mixture, and the mixture is directly applied according to the components of the granular and powder adsorbing materials.

Preferably, in steps S1 and S2, the intelligent control platform controls the feeding speed and the rotating speed of the agitator at each stage to realize uninterrupted sludge treatment, or the intelligent control platform intermittently controls sludge output in the sludge storage bin and intermittently controls mixture output in the mixture storage bin to realize intermittent sludge treatment.

Compared with the prior art, the invention has the following technical effects:

1. the powdery treating agent storage bin and the powdery adsorbing material storage bin are both communicated with the mixer, the discharge port of the mixer is communicated with the stirrer, the powdery adsorbing material is firstly mixed with the powdery treating agent, the treating agent is uniformly dispersed into the mixture in the mixing process, when the mixture enters the stirrer and is mixed with the sludge, the treating agent is uniformly distributed in the mixture, so when the mixture enters the stirrer, the treating agent is mixed with the sludge in a relatively dispersed state, the contact area of the treating agent and the sludge is increased, and the treating agent can be rapidly uniformly dispersed into the sludge by matching with the stirring and scattering action of the stirrer, the time required by the uniform dispersion of the treating agent is shortened, the treatment efficiency of the sludge is improved, and because the treating agent and the adsorbing material jointly enter the stirrer, after the treating agent changes the combined water in the sludge into free water, can be absorbed by the adsorption material, the accessible increases the holistic moisture content of quantity control agitator stirring completion back of adsorption material.

2. According to the sludge treatment device, the mixture storage bin is further arranged between the mixer and the stirrer, the mixture formed by mixing the adsorption material and the treatment agent can be stored by using the mixture storage bin, and when sludge needs to be treated, the mixture in the mixture storage bin is directly conveyed, so that the sludge treatment time can be further shortened, and the sludge treatment efficiency can be improved.

3. The powder adsorbing material disclosed by the invention adopts common humic acid, furfural slag, furnace ash, coal gangue, furnace ash or coal powder and the like, and a proper amount of adsorbing material can be selected, so that the material output by the stirrer can be directly applied to different scenes, and the resource utilization of sludge is realized.

4. In the invention, the process from the feeding port to the discharging port is finished in the closed space of the treatment equipment, no sewage, waste water and dust are discharged in the whole process, the secondary treatment cost and the investment of matched environment-friendly equipment are saved, and the cost of sludge treatment is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

FIG. 1 is a schematic view showing the structure of a sludge dewatering treatment system according to the present invention;

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention aims to provide a sludge dewatering treatment system and a sludge treatment method, which are used for solving the problems in the prior art and improving the sludge treatment efficiency.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Referring to fig. 1, a sludge dewatering system is provided, which includes a sludge storage bin, a powdered treating agent storage bin, a powdered adsorbing material storage bin and a mixer, wherein the sludge storage bin is communicated with the mixer, the powdered treating agent storage bin and the powdered adsorbing material storage bin are both communicated with the mixer, the mixer mixes the powdered treating agent and the powdered adsorbing material to form a mixture, a discharge port of the mixer is communicated with the mixer, the mixer mixes and scatters the sludge and the mixture and outputs the mixture, the powdered adsorbing material is mixed with the powdered treating agent in advance, the treating agent is uniformly dispersed into the mixture during the mixing process, when the mixture enters the mixer and is mixed with the sludge, the treating agent is uniformly distributed in the mixture, so when the mixture enters the mixer, the treating agent is mixed with the sludge in a relatively dispersed state, increased the area of contact of treating agent and mud, the effect is broken up in the stirring of deuterogamying the agitator, can be very fast make in the even dispersion of treating agent to mud, the required time of treating agent homodisperse has been shortened, the treatment effeciency of mud has been improved, see from the on the other hand, when reaching same treatment effect at the same time, this system can reduce the use amount of treating agent relatively, and the cost is saved, and because treating agent and adsorption material enter into the agitator jointly, behind the binding water in treating agent with mud becomes the free water, can absorb by the adsorption material, the accessible increases the holistic moisture content of adsorbing material control agitator stirring completion back, the quantity of adsorption material is more, holistic moisture content will be lower.

The parameters of the respective raw materials used in this example were as follows:

treating agent parameters: the water content is not more than 15 percent, and the fineness is 20-200 meshes;

parameters of the adsorbing material: the water content is not more than 30 percent, and the fineness is 20-100 meshes;

sludge water content: not more than 80%;

stirring to treat one ton of sludge or oil sludge containing 60-80% of water, wherein 5-10% of treating agent and 50-90% of adsorbing material are added; the mixture of the uniform and dispersed particles and powder with 30 to 50 percent of water is obtained after stirring.

The storehouse is stored to mud is linked together through screw conveyer and agitator, and the storehouse is stored to likepowder treating agent and the storehouse is stored to likepowder adsorption material and all is linked together through screw conveyer and blender, and the discharge gate of blender is linked together through screw conveyer and agitator, and through the mode that screw conveyer carried, but greatly reduced practices thrift the cost to artificial demand.

In order to further improve the treatment efficiency of the sludge, a mixture storage bin is further arranged between the mixer and the stirrer, a discharge port of the mixer is communicated with the mixture storage bin through a screw conveyor, the mixture storage bin is communicated with the stirrer of the screw conveyor, the mixture storage bin can be used for storing the mixture formed by mixing the adsorption material and the treatment agent, when the sludge needs to be treated, the mixture in the mixture storage bin can be directly conveyed, the treatment time of the sludge can be further shortened, and the treatment efficiency of the sludge is improved.

In order to realize full-automatic control, an intelligent control platform is arranged, the spiral conveyor is electrically connected with the intelligent control platform, the automatic sludge treatment controlled by the intelligent control platform can be realized by inputting data such as the speed, the working time and the like of each stage of spiral conveyor on the intelligent control platform in advance, and all stages of storage bins are used for feeding according to a custom proportion.

Storehouse is stored to powdery treating agent, floury adsorbing material stores the storehouse and the mixture is stored the storehouse and is conical structure, and the pan feeding mouth has been seted up to conical structure, and the storehouse is stored to powdery treating agent, floury adsorbing material stores the storehouse and the mixture is stored the storehouse and all is carried out anticorrosive water-proof treatment.

The powdery treating agent storage bin, the powdery adsorbing material storage bin and the mixture storage bin can be respectively provided with a residual material weight detection system for detecting the residual material amount in the bins.

The sludge storage bin is of a conical structure, an open vent and a feeding port are formed in the sludge storage bin, and the sludge storage bin is subjected to anti-corrosion treatment.

The weight counter can be arranged at the bottom of the sludge storage bin and is used for observing the weight of the sludge in the sludge storage bin in real time.

In the process, the process is completed from the feed inlet to the discharge outlet in the closed space of the treatment equipment, no sewage, waste water and dust are discharged in the whole process, the secondary treatment cost and the investment of matched environment-friendly equipment are saved, and the cost of sludge treatment is reduced.

Can also set up the weight statistics ware in the agitator exit to additionally store the storehouse at likepowder treating agent, likepowder adsorption material stores the storehouse, the storehouse is stored to the mixture, mud stores the storehouse and agitator exit sets up the moisture content caliber, intelligent control platform and clout weight detecting system, weight statistics ware, moisture content caliber electricity are connected, intelligent control platform can measure each hopper feeding weight, agitator ejection of compact weight, material moisture content and control each kind of material arbitrary mixing proportion mix than or mix the allotment.

The stirrer adopts a horizontal double-shaft or multi-shaft stirring system or other stirring mechanisms, the horizontal double-shaft or multi-shaft stirring system can realize uniform stirring and scattering of the sludge and the mixture, has a certain function of crushing combined water, assists in improving the sludge treatment efficiency, and continuously works, so that the stirrer outputs uniform granular and powder mixture which is in an evacuation state.

The powder-shaped adsorbing materials are humic acid, furfural residues, furnace ash residues, coal gangue, furnace ash or coal powder and the like, and in addition, the proper adsorbing materials can be selected, so that the materials output by the stirrer can be directly applied to different scenes, and the resource utilization of sludge is realized.

For example: (1) sludge as organic soil

With the usual raw materials available to the customer: humic acid, furfural residue and other dry organic matters are used as adsorption materials, sludge treatment agents (sludge dewatering materials on the market) and the adsorption materials are mixed and stirred according to a certain proportion to form a mixture, the mixture is mixed and stirred with sludge containing 60% -80% of water to rapidly form odorless sparse powder with the water content of 30% -50%, and the sludge is rapidly changed into organic soil.

(2) Sludge mixing ratio burning brick

With the raw materials available to the customer: furnace ash, coal gangue and the like are used as adsorption materials, a sludge treatment agent and the adsorption materials are mixed and stirred according to a certain proportion to form a mixture, the mixture is mixed and stirred with sludge containing 60% -80% of water to quickly form odorless, uniform and sparse particles with the water content of 30% -50%, and the requirement of a customer on mixing ratio for making bricks is directly met;

(3) sludge mixed combustion in thermal power plant, cement kiln and incinerator

With the raw materials available to the customer: furnace dust, pulverized coal and the like are used as adsorbing materials, a sludge treating agent and the adsorbing materials are mixed and stirred according to a certain proportion to form a mixture, the mixture and sludge containing 60% -80% of water are mixed and stirred to quickly form an odorless dispersed granular and powdery mixture with the water content of 30% -50%, and the requirement of direct blending and burning of customers is met.

A belt conveyor or temporary storage bin may be provided at the outlet of the blender for direct transport of the finished product or for temporary storage of the finished product.

The system can also be used for treating the oil sludge.

The invention also provides a sludge treatment method of the sludge dewatering treatment system, which comprises the following steps:

s1: manually starting the screw conveyors at all levels through the intelligent control platform, inputting the operating parameters of the screw conveyors at all levels in advance, conveying sludge in the sludge storage bin into the stirrer, conveying the powdery treating agent in the powdery treating agent storage bin and the powdery adsorbing material in the powdery adsorbing material storage bin into the mixer for mixing to form a powdery mixture, uniformly dispersing the powdery treating agent in the mixture, and conveying the mixture into the mixture storage bin through the screw conveyors after the mixing is finished;

s2: the mixture in the mixture storage bin is conveyed into the stirrer through the screw conveyor, and because the treating agent in the mixture is uniformly distributed, when the mixture enters, the treating agent is mixed with the sludge in a relatively dispersed state, so that the contact area of the treating agent and the sludge is increased, at the moment, the sludge and the mixture are fully stirred and scattered by a horizontal double-shaft or multi-shaft stirring system in the stirrer, and in the stirring and scattering process, the powdery treating agent is fully contacted with the sludge to change the bound water in the sludge into free water, and the free water is absorbed by the powdery adsorbing material;

s3: the stirrer outputs the mixture after being stirred and scattered, the mixture is a uniform and scattered granular and powder mixture, and the mixture is directly applied according to the components (can be selected automatically according to the requirement) of the granular and powder adsorbing material, so that the resource utilization of the sludge is realized.

In steps S1 and S2, the intelligent control platform controls the feeding speed and the rotating speed of the agitator at each stage to realize the uninterrupted sludge treatment, or the intelligent control platform intermittently controls the sludge output in the sludge storage bin and intermittently controls the mixture output in the mixture storage bin to realize the interrupted sludge treatment.

The adaptation according to the actual needs is within the scope of the invention.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.