CN114212920A - Waste water treatment device for graphite heat exchanger production - Google Patents

Waste water treatment device for graphite heat exchanger production Download PDF

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Publication number
CN114212920A
CN114212920A CN202210155601.4A CN202210155601A CN114212920A CN 114212920 A CN114212920 A CN 114212920A CN 202210155601 A CN202210155601 A CN 202210155601A CN 114212920 A CN114212920 A CN 114212920A
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ball
flow
plate
limiting
install
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宋建新
周海燕
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Jiangsu Doupeng Technology Co ltd
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Jiangsu Doupeng Technology Co ltd
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5281Installations for water purification using chemical agents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F2001/007Processes including a sedimentation step

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

The invention discloses a wastewater treatment device for graphite heat exchanger production, which specifically comprises: the invention relates to a processing box, which comprises a cover-free box body, a water inlet, a water outlet, a flow limiting ball, a material storage device and a water flow impact ball, wherein the water inlet is formed in the top of the back of the cover-free box body, the water outlet is formed in the bottom of the front of the cover-free box body, the flow limiting ball is arranged in the middle of the inner walls of two sides of the cover-free box body, the material storage device is arranged on the inner surface of the flow limiting ball, the water flow impact ball is arranged on the outer surface of the flow limiting ball, and a precipitation flow channel is arranged at the bottom of the cover-free box body on one side of the water outlet. The proportion that will shake pole moment through the setting of spring post and impact ball increases, strengthens the range of friction vibrations, utilizes the inertia of impact ball to increase vibrations striking dynamics simultaneously, promotes the extrusion dynamics to the chemical, and the chemical of being convenient for spills through the cylinder platform hole, avoids the cylinder platform hole to produce because of the chemical simultaneously and blocks.

Description

Waste water treatment device for graphite heat exchanger production
Technical Field
The invention relates to the technical field of ink heat exchangers, in particular to a wastewater treatment device for graphite heat exchanger production.
Background
The graphite heat exchanger needs a large amount of industrial water in the production and manufacturing process, particularly when old equipment is returned to a factory for maintenance, a certain amount of residual media permeates into the material due to the characteristics of the graphite material, and sometimes a certain amount of residual media needs to be treated, wherein the residual media are generally acid-containing media, such as sulfuric acid, hydrochloric acid, hydrofluoric acid and the like.
The waste water treatment device of current graphite heat exchanger production contacts with waste water at the in-process chemical in the use, produces unnecessary easily and piles up for chemical and waste water can not fully contact, and the reaction produces not enough abundant thoroughly, influences the purifying effect to waste water.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a wastewater treatment device for graphite heat exchanger production, which solves the problems that chemicals are in contact with wastewater in the use process of the wastewater treatment device for graphite heat exchanger production, unnecessary accumulation is easy to generate, the chemicals are not in sufficient contact with the wastewater, the reaction is not sufficient and thorough, and the purification effect of the wastewater is influenced.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a effluent treatment plant of graphite heat exchanger production, specifically includes:
the processing box, this processing box has the uncovered box, and sets up the water inlet at uncovered box back top, and set up the delivery port of uncovered box front bottom, and install the current-limiting ball of uncovered box both sides inner wall intermediate position, and install the stock device of current-limiting ball inner surface, and install the rivers of current-limiting ball surface are washed the ball, and install the uncovered box is located the sediment runner of delivery port one side bottom, the stock device includes:
store the ball, should store the ball and have the spherical shell main part, and set up the cylinder platform hole of spherical shell main part surface, and install the arc of spherical shell main part surface intermediate position seals the clamp plate, and installs the pole that shakes of spherical shell main part top intermediate position, and installs the spring post of pole bottom that shakes, and install the striking ball of spring post bottom, and install the friction plate at pole top that shakes. The proportion that will shake pole moment through the setting of spring post and impact ball increases, strengthens the range of friction vibrations, utilizes the inertia of impact ball to increase vibrations striking dynamics simultaneously, promotes the extrusion dynamics to the chemical, and the chemical of being convenient for spills through the cylinder platform hole, avoids the cylinder platform hole to produce because of the chemical simultaneously and blocks.
Preferably, the flow restriction ball includes:
the fixing column is provided with two cylindrical rod bodies, the two cylindrical rod bodies are mounted on the current-limiting spherical shell at one end, close to one end of each cylindrical rod body, the channel groove is formed in the middle of the bottom of the current-limiting spherical shell, the mounting rotating hole is formed in the top of the outer surface of the current-limiting spherical shell, and the friction ball is mounted on the inner surface of the mounting rotating hole. The friction is conducted through the friction ball, meanwhile, the ball body design of the friction ball is beneficial to reducing the contact area of the components, the phenomenon that the components are prevented from resetting cannot occur in the friction transmission process, and the vibration generated by friction is kept to be continuously transmitted.
Preferably, the inner surface of the flow-limiting spherical shell is connected with the arc-shaped pressure sealing plate, and the bottom of the outer surface of the friction ball is connected with the friction plate. Through arc holding plate set up in the current-limiting spherical shell mutually support, carry out negative pressure to the space of arc holding plate and the inside formation of current-limiting spherical shell and handle, produce the atmospheric pressure difference all around to storing the ball, carry out the state to the chemical of storing the ball inside and keep avoiding directly revealing, under the condition that the chemical constantly reveals simultaneously, the inside gaseous continuous make-up of current-limiting spherical shell has accelerated the whereabouts of chemical, promotes the speed of purifying.
Preferably, the water impact ball comprises:
the rotary spherical shell is provided with an annular spherical shell and a leaking through hole formed in the outer surface of the annular spherical shell, and the water flow punching plate is arranged on the outer surface of the rotary spherical shell and located between the leaking through holes. The impact force of waste water whereabouts is utilized through the setting of rivers dash board, and rivers dash board increases the quality of rotating the spherical shell simultaneously, promotes the motion inertia that rotates the spherical shell, increases the utilization to waste water impact force, and rivers dash the board and slowly flow waste water stream simultaneously, makes the abundant contact of waste water and chemicals thoroughly react, the more thorough of purification.
Preferably, the inner surface of the rotating spherical shell is connected with the flow limiting ball, and the rotating spherical shell is located in the middle of the inner cavity of the treatment box.
Preferably, the sedimentation flow path comprises:
the runner plate body, this runner plate body have concave type main part, and install the slow flow resistance plate of concave type main part inner chamber both sides inner wall, just slow flow resistance plate is provided with two, and installs slow flow resistance plate is close to the showy gasbag of one side each other, and installs the protection arc board at showy gasbag top, and install the cylinder ejector pin at slow flow resistance plate top, and install concave type main part inner chamber bottom is located just keep away from under the slow flow resistance plate handle the wall bottom plate of case one side. The setting through slow flow resistance plate and wall bottom plate cuts off rivers for rivers produce and hoard, and rivers after will purifying deposit, are favorable to depositing reaction product and keep somewhere, avoid producing secondary pollution to the rivers, utilize rivers buoyancy to open and close control slow flow resistance plate simultaneously, can control the water level in real time, avoid the interception rivers to spill over the runner.
A using method of a waste water treatment device produced by a graphite heat exchanger comprises the following steps,
the method comprises the following steps: placing solid chemicals evolved by the wastewater in an inner cavity of a storage ball, integrally installing a material storage device on the inner surface of a flow-limiting ball shell of the flow-limiting ball, and pumping air flow in the middle of an arc-shaped pressure sealing plate to form negative pressure;
step two: supporting chemicals in the inner cavity of the storage ball by the negative pressure in the step one and the pressure difference in the flow-limiting ball shell to avoid leakage of the chemicals, and installing the rotating ball shell in the water flow impact ball on the outer surface of the flow-limiting ball;
step three: the wastewater is filled through a water inlet of the treatment box, enters an inner cavity of the treatment box and impacts a water flow impact plate of a water flow impact ball, so that the water flow impact plate drives the rotating spherical shell to rotate;
step four: the rotating spherical shell rotates to rub the friction ball in the current limiting ball, so that the friction ball rotates and further rubs the friction plate, and the friction plate generates vibration;
step five: the vibration is transmitted through the vibration rod and is transmitted to the spring column and the impact ball through the vibration rod, so that the impact ball swings to impact the storage ball and the chemicals inside the storage ball, vibration and extrusion are generated, and the chemicals are leaked through the cylindrical table hole;
step seven: chemicals leak into the inner cavity of the flow-limiting spherical shell and are accumulated at the position of the channel groove, the rotation of the spherical shell is rotated to drive the material leakage through hole to be aligned with the channel groove, and the chemicals are contacted with the wastewater to generate a chemical reaction for purification;
step eight: the waste water after the purification flows out through the delivery port and gets into the sediment runner, dams rivers through slowly flowing the resistance board in the sediment runner and cutting off the bottom plate and mutually support for rivers deposit, when the water level rises and produces buoyancy to showy gasbag, showy gasbag drives slowly flows the resistance board and rises, carries out the rivers discharge after deposiing.
(III) advantageous effects
The invention provides a wastewater treatment device for graphite heat exchanger production. The method has the following beneficial effects:
(one), this effluent treatment plant of graphite heat exchanger production, the proportion that will shake pole moment through the setting of spring post and impact ball increases, strengthens the range of friction vibrations, utilizes the inertia of impact ball to increase simultaneously and shakes the striking dynamics, promotes the extrusion dynamics to the chemical, and the chemical of being convenient for spills through cylinder platform hole, avoids cylinder platform hole to produce because of the chemical simultaneously and blocks.
(II), this waste water treatment device of graphite heat exchanger production conducts the friction through the setting of friction ball, and the spheroid design of friction ball is favorable to reducing the area of contact between the component each other simultaneously, can not produce the phenomenon that hinders the component and reset among the friction transfer process, keeps the vibrations that the friction produced to last the transmission.
(III), this effluent treatment plant of graphite heat exchanger production, through setting up of arc holding plate in the current-limiting spherical shell mutually support, carry out the negative pressure to the space of arc holding plate and the inside formation of current-limiting spherical shell and handle, produce the atmospheric pressure difference all around to storing the ball, carry out the state to the chemical of storing the ball and keep avoiding directly revealing, under the condition that the chemical constantly reveals simultaneously, the inside gaseous constantly upwards replenishment of current-limiting spherical shell has accelerateed the whereabouts of chemical, promote the speed of purification.
(IV), this waste water treatment facilities of graphite heat exchanger production, the impact force of falling waste water is utilized through the setting of rivers dash board, and rivers dash board increases the quality of rotating the spherical shell simultaneously, promotes the motion inertia that rotates the spherical shell, increases the utilization to the waste water impact force, and rivers dash board delays the flow to the waste water stream simultaneously, makes the abundant contact thorough reaction of waste water and chemicals, the more thorough of purification.
(V), this waste water treatment device of graphite heat exchanger production cuts off rivers through the setting of slow flow resistance plate and wall bottom plate for rivers produce and hoard, and rivers after will purifying deposit, are favorable to deposiing the reaction product and keep somewhere, avoid producing secondary pollution to the rivers, utilize rivers buoyancy to open and close control slow flow resistance plate simultaneously, can control the water level in real time, avoid intercepting rivers and spill over the runner.
Drawings
FIG. 1 is a schematic structural view of the present invention as a whole;
FIG. 2 is a schematic view of the overall appearance structure of the present invention;
FIG. 3 is a schematic structural view of the material storing device of the present invention;
FIG. 4 is a schematic view of a flow-limiting ball according to the present invention;
FIG. 5 is a schematic view of the structure of a water impact ball of the present invention;
FIG. 6 is a schematic structural diagram of a sediment flow channel according to the present invention;
in the figure: the device comprises a treatment box 1, a water inlet 2, a water outlet 3, a flow-limiting ball 4, a fixed column 41, a flow-limiting ball shell 42, a channel groove 43, a mounting rotating hole 44, a friction ball 45, a material storage device 5, a storage ball 51, a cylindrical table hole 52, an arc-shaped pressure sealing plate 53, a vibration rod 54, a spring column 55, an impact ball 56, a friction plate 57, a water flow impact ball 6, a rotating ball shell 61, a material leakage through hole 62, a water flow impact plate 63, a settling flow channel 7, a flow channel plate body 71, a flow buffering baffle plate 72, a floating air bag 73, a protective arc plate 74, a cylindrical ejector rod 75 and a partition bottom plate 76.
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 first embodiment is as follows:
referring to fig. 1-6, the present invention provides a technical solution: the utility model provides a effluent treatment plant of graphite heat exchanger production, specifically includes:
handle case 1, this processing case 1 has the uncovered box, and set up at the water inlet 2 at uncovered box back top, and set up at the delivery port 3 of uncovered box openly bottom, and install the current-limiting ball 4 at uncovered box both sides inner wall intermediate position, and install the stock device 5 at 4 internal surfaces of current-limiting ball, and install the rivers impact ball 6 at 4 external surfaces of current-limiting ball, and install and be located the sediment runner 7 of 3 one side bottoms of delivery port at the uncovered box, stock device 5 includes:
the storage ball 51 has a spherical shell body, a cylindrical table hole 52 formed on the outer surface of the spherical shell body, an arc-shaped pressure sealing plate 53 installed at the middle position of the outer surface of the spherical shell body, a vibration rod 54 installed at the middle position of the top of the spherical shell body, a spring column 55 installed at the bottom end of the vibration rod 54, and a striking ball 56 installed at the bottom of the spring column 55, and a friction plate 57 installed at the top of the vibration rod 54. The proportion of pole 54 moment will shake through the setting of spring post 55 and striking ball 56 increases, strengthens the range of friction vibrations, utilizes the inertia of striking ball 56 to increase vibrations striking dynamics simultaneously, promotes the extrusion dynamics to the chemical, and the chemical of being convenient for spills through cylinder platform hole 52, avoids cylinder platform hole 52 to produce because of the chemical simultaneously and blocks.
The flow restricting ball 4 includes:
the fixing post 41 is provided with two cylindrical rod bodies, the flow-limiting spherical shell 42 is arranged at one end, close to each other, of each cylindrical rod body, the channel groove 43 is formed in the middle of the bottom of the flow-limiting spherical shell 42, the mounting rotating hole 44 is formed in the top of the outer surface of the flow-limiting spherical shell 42, and the friction ball 45 is mounted on the inner surface of the mounting rotating hole 44. The friction is conducted through the arrangement of the friction ball 45, meanwhile, the ball body design of the friction ball 45 is beneficial to reducing the contact area of the components, the phenomenon that the components are reset cannot be generated in the friction transmission process, and the vibration generated by the friction is kept to be continuously transmitted.
The inner surface of the flow-limiting ball shell 42 is connected with the arc-shaped pressure sealing plate 53, and the bottom of the outer surface of the friction ball 45 is connected with the friction plate 57. Through arc holding plate 53 set up in current-limiting spherical shell 42 and mutually support, carry out negative pressure to the space of arc holding plate 53 with the inside formation of current-limiting spherical shell 42 and handle, produce the atmospheric pressure difference all around to storing ball 51, carry out the state to the inside chemical of storing ball 51 and keep avoiding directly revealing, under the condition that the chemical constantly reveals, the inside gaseous constantly upwards replenishment of current-limiting spherical shell 42 has accelerateed the whereabouts of chemical, promotes the speed of purifying.
The water impact ball 6 includes:
the rotating spherical shell 61 is provided with an annular spherical shell, a material leakage through hole 62 formed in the outer surface of the annular spherical shell, and a water flow punching plate 63 installed on the outer surface of the rotating spherical shell 61 and located between the material leakage through holes 62. The impact force of waste water whereabouts is utilized through the setting of rivers dash board 63, and rivers dash board 63 increases the quality of rotating spherical shell 61 simultaneously, promotes the motion inertia of rotating spherical shell 61, increases the utilization to waste water impact force, and rivers dash board 63 delays the flow to the waste water stream simultaneously, makes waste water and chemical fully contact thoroughly reaction, the more thorough of purification.
The inner surface of the rotating spherical shell 61 is connected with the flow-limiting ball 4, and the rotating spherical shell 61 is positioned in the middle of the inner cavity of the treatment box 1.
The settling flow path 7 includes:
the runner plate body 71, this runner plate body 71 has concave type main part, and install the slow flow baffler 72 at concave type main part inner chamber both sides inner wall, and slow flow baffler 72 is provided with two, and install the showy gasbag 73 that is close to one side each other at slow flow baffler 72, and install the protection arc board 74 at showy gasbag 73 top, and install the cylinder ejector pin 75 at slow flow baffler 72 top, and install and be located under slow flow baffler 72 and keep away from the partition bottom plate 76 who handles case 1 one side at concave type main part inner chamber bottom. The water flow is separated through the slow flow baffle plate 72 and the separation bottom plate 76, so that the water flow is hoarded, the purified water flow is precipitated, the reaction product is precipitated and kept, secondary pollution to the water flow is avoided, meanwhile, the slow flow baffle plate 72 is controlled to be opened and closed through the water flow buoyancy, the water level can be controlled in real time, and the phenomenon that the intercepted water flow overflows a flow channel is avoided.
Example two:
referring to fig. 1-6, on the basis of the first embodiment, the present invention provides a technical solution: a using method of a waste water treatment device produced by a graphite heat exchanger comprises the following steps,
the method comprises the following steps: solid chemicals evolved by the wastewater are placed in the inner cavity of the storage ball 51, the storage device 5 is integrally installed on the inner surface of the flow-limiting ball shell 42 of the flow-limiting ball 4, and air flow in the middle of the arc-shaped pressure sealing plate 53 is pumped away to form negative pressure;
step two: supporting the chemicals in the inner cavity of the storage ball 51 by the negative pressure in the step one and the air pressure difference in the flow-limiting ball shell 42 to avoid the leakage of the chemicals, and installing the rotating ball shell 61 in the water flow impact ball 6 on the outer surface of the flow-limiting ball 4;
step three: the wastewater is filled through the water inlet 2 of the treatment box 1, enters the inner cavity of the treatment box 1 and impacts the water flow impact plate 63 of the water flow impact ball 6, so that the water flow impact plate 63 drives the rotating spherical shell 61 to rotate;
step four: the rotation of the rotating ball shell 61 rubs the friction ball 45 in the flow limiting ball 4, so that the friction ball 45 rotates and further rubs the friction plate 57, so that the friction plate 57 generates vibration;
step five: the vibration is transmitted through the vibration rod 54 and is transmitted to the spring post 55 and the impact ball 56 through the vibration rod 54, so that the impact ball 56 swings to impact the storage ball 51 and the internal chemicals, the vibration and the extrusion are generated, and the chemicals leak out through the cylindrical table hole 52;
step seven: chemicals leak into the inner cavity of the flow-limiting spherical shell 42 and are accumulated at the position of the channel groove 43, the rotation of the spherical shell 61 is rotated to drive the material leakage through hole 62 to be aligned with the channel groove 43, and the chemicals are contacted with the wastewater to generate chemical reaction for purification;
step eight: the waste water after purifying flows out through delivery port 3 and gets into sediment runner 7, dams rivers through slowly flowing resistance plate 72 and wall bottom plate 76 mutually support in the sediment runner 7 for rivers deposit, and when the water level rose and produced buoyancy to showy gasbag 73, showy gasbag 73 drove slowly flowing resistance plate 72 and rises, and the rivers that carry out after deposiing discharge.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a effluent treatment plant of graphite heat exchanger production, specifically includes:
handle case (1), this processing case (1) has the uncovered box, and sets up water inlet (2) at uncovered box back top, and set up delivery port (3) of uncovered box front bottom, and install current-limiting ball (4) of uncovered box both sides inner wall intermediate position, and install stock device (5) of current-limiting ball (4) internal surface, and install the rivers impact ball (6) of current-limiting ball (4) surface, and install the uncovered box is located deposit runner (7) of delivery port (3) one side bottom, its characterized in that: the stock device (5) comprises:
the storage ball (51) is provided with a ball shell main body, a cylindrical table hole (52) formed in the outer surface of the ball shell main body, an arc-shaped pressure sealing plate (53) arranged in the middle of the outer surface of the ball shell main body, a vibration rod (54) arranged in the middle of the top of the ball shell main body, a spring column (55) arranged at the bottom end of the vibration rod (54), and a ball striking plate (56) arranged at the bottom of the spring column (55) and a friction plate (57) arranged at the top of the vibration rod (54).
2. The waste water treatment device for graphite heat exchanger production according to claim 1, characterized in that: the flow-limiting ball (4) comprises:
the fixing post (41) is provided with two cylindrical rod bodies, a flow-limiting spherical shell (42) is arranged at one end, close to one end of each other, of each cylindrical rod body, a channel groove (43) is formed in the middle of the bottom of the flow-limiting spherical shell (42), an installation rotating hole (44) is formed in the top of the outer surface of the flow-limiting spherical shell (42), and a friction ball (45) is arranged on the inner surface of the installation rotating hole (44).
3. The waste water treatment device for graphite heat exchanger production according to claim 2, characterized in that: the inner surface of the flow-limiting spherical shell (42) is connected with the arc-shaped pressure sealing plate (53), and the bottom of the outer surface of the friction ball (45) is connected with the friction plate (57).
4. The waste water treatment device for graphite heat exchanger production according to claim 1, characterized in that: the water current impact ball (6) comprises:
the rotary ball shell (61), the rotary ball shell (61) is provided with an annular ball shell, a material leakage through hole (62) formed in the outer surface of the annular ball shell, and a water flow punching plate (63) arranged on the outer surface of the rotary ball shell (61) and located between the material leakage through holes (62).
5. The waste water treatment device for graphite heat exchanger production according to claim 4, characterized in that: the inner surface of the rotating spherical shell (61) is connected with the flow limiting ball (4), and the rotating spherical shell (61) is positioned in the middle of the inner cavity of the treatment box (1).
6. The waste water treatment device for graphite heat exchanger production according to claim 1, characterized in that: the sedimentation flow channel (7) comprises:
runner plate body (71), this runner plate body (71) have concave type main part, and install slow flow resistance plate (72) of concave type main part inner chamber both sides inner wall, just slow flow resistance plate (72) are provided with two, and install slow flow resistance plate (72) are close to showy gasbag (73) of one side each other, and install protective arc board (74) at showy gasbag (73) top, and install cylinder ejector pin (75) at slow flow resistance plate (72) top, and install concave type main part inner chamber bottom is located just keep away from under slow flow resistance plate (72) handle partition bottom plate (76) of case (1) one side.
CN202210155601.4A 2022-02-21 2022-02-21 Waste water treatment device for graphite heat exchanger production Pending CN114212920A (en)

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CN110255637A (en) * 2019-07-24 2019-09-20 马鞍山市新桥工业设计有限公司 A kind of sewage disposal device
CN112479435A (en) * 2020-12-11 2021-03-12 安徽信息工程学院 Metal waste water nanometer bubble purifier
CN214781171U (en) * 2021-03-02 2021-11-19 南京康集环保科技有限公司 Waste water treatment device for accelerating precipitation

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Application publication date: 20220322