CN112479337B - Small-batch laboratory sewage neutralization treatment device - Google Patents
Small-batch laboratory sewage neutralization treatment device Download PDFInfo
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- CN112479337B CN112479337B CN202011369540.9A CN202011369540A CN112479337B CN 112479337 B CN112479337 B CN 112479337B CN 202011369540 A CN202011369540 A CN 202011369540A CN 112479337 B CN112479337 B CN 112479337B
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- box body
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/19—Stirrers with two or more mixing elements mounted in sequence on the same axis
- B01F27/191—Stirrers with two or more mixing elements mounted in sequence on the same axis with similar elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/712—Feed mechanisms for feeding fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/714—Feed mechanisms for feeding predetermined amounts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/305—Treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/003—Wastewater from hospitals, laboratories and the like, heavily contaminated by pathogenic microorganisms
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (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)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Accessories For Mixers (AREA)
Abstract
The invention relates to a small-batch laboratory sewage neutralization treatment device, which effectively solves the problems that the laboratory sewage neutralization operation is inconvenient and the neutralization degree is difficult to control; the technical scheme for solving the problem is that a bracket is arranged above a box body, and a vertical rotating shaft penetrates through the box body and the bracket; the box body is provided with three vertically arranged liquid storage boxes, a rotatable screw rod is arranged in each liquid storage box, and an extrusion plate arranged in each liquid storage box is connected to each screw rod in a threaded manner; the side wall of the upper section of each liquid storage box is connected with a liquid inlet pipe; the lower end of each liquid storage box is connected with a liquid outlet pipe, and a pressure valve is arranged on each liquid outlet pipe; a middle pool is fixed in the box body, and the lower ends of the liquid outlet pipes are positioned right above the middle pool; the bottom of the middle pool is provided with a movable plate which is fixed on a rotating shaft, and the rotating shaft can move up and down and reset upwards; after the rotating shaft is pressed, a gap is formed between the movable plate and the side wall of the middle pool; the invention can freely adjust the proportion between the neutralizer and the sewage, and is simple and convenient.
Description
Technical Field
The invention relates to the field of laboratory sewage treatment, in particular to a small-batch laboratory sewage neutralization treatment device.
Background
Laboratory after various chemical laboratories have been performed, various liquids discarded may generally be different in acidity or alkalinity due to different properties of chemical agents. At the time of discharge, neutralization is necessary. Can meet certain discharge standard. The prior treatment is to directly add a certain amount of acid liquor or alkali liquor into the liquid to be treated for neutralization. Because the acidity degree or the alkalinity degree of the sewage is difficult to determine, and the concentration and the components of the materials are not very clear, the sewage cannot be neutralized exactly, generally, a method of multiple trials is adopted, namely, after a certain treatment liquid is added, stirring is carried out, then measurement is carried out, the treatment liquid is added, the steps are repeated until neutralization, the operation is complicated, frequent addition is needed, and the increase of the sewage amount is easy to cause; meanwhile, the neutralization reaction is generally strong, so that a large amount of heat is easily generated, and partial precipitates are also generated; therefore, the reaction is more complete by stirring in time; conventional stirring involves certain operational risks, and therefore a safer and more efficient device is needed for operation.
Disclosure of Invention
In view of the above situation, in order to solve the problems in the prior art, the present invention aims to provide a small-batch laboratory sewage neutralization treatment apparatus, which can effectively solve the problems of inconvenient laboratory sewage neutralization operation and difficulty in mastering the neutralization degree.
The technical scheme for solving the problem is that the device comprises a box body, wherein a bracket is arranged above the box body, and a vertical rotating shaft penetrates through the box body and the bracket; three vertically arranged liquid storage boxes are uniformly distributed on the circumference of the box body, a rotatable lead screw is arranged in each liquid storage box, and an extrusion plate arranged in each liquid storage box is connected to each lead screw in a threaded manner; the side wall of the upper section of each liquid storage box is connected with a liquid inlet pipe; the lower end of each liquid storage box is connected with a liquid outlet pipe, and a pressure valve is arranged on each liquid outlet pipe; an intermediate pool with an upward opening is fixed in the box body, and the lower ends of the liquid outlet pipes are positioned right above the intermediate pool; the bottom of the middle pool is a movable plate which can move up and down and is fixed on a rotating shaft, and the rotating shaft can move up and down and reset upwards; after the rotating shaft is pressed, a gap is formed between the movable plate and the side wall of the middle pool; a plurality of stirring shafts positioned below the middle tank are fixed on the rotating shaft;
a first PH value detector is installed at the bottom of the middle pool, and a second PH value detector is installed at the bottom of the box body;
the bracket is provided with a fixed block positioned above each liquid storage box, the fixed block is inserted with a transverse guide rod and a rack positioned below the guide rod, and the right ends of the guide rod and the rack are connected with a vertical extrusion rod; the guide rod can move left and right and reset towards the middle, the outer end of the guide rod penetrates through the bracket and extends out of the bracket, and the outer end of the guide rod is in a threaded shape and is screwed with a nut; an eccentric wheel is fixed on the rotating shaft and can extrude a plurality of extrusion rods; the upper end of each screw rod is provided with a gear through a one-way clutch, an eccentric wheel extrudes an extrusion rod, after the extrusion rod moves outwards, a rack can drive the gear to rotate, and the screw rods rotate through the one-way clutch; thereby pushing the compression plate down.
The invention can conveniently and freely adjust the proportion between the neutralizer and the sewage, and the whole device is safe, reliable, simple and convenient.
Drawings
FIG. 1 is a front sectional view of the present invention.
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention.
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1 in accordance with the present invention.
Fig. 4 is a perspective view of the guide rod, the rack and the extrusion rod in cooperation.
Fig. 5 is a partially enlarged view of C in fig. 1.
Detailed Description
The following describes in further detail embodiments of the present invention with reference to the accompanying drawings.
As shown in fig. 1 to 5, the present invention comprises a box body 1, a support 2 is arranged above the box body 1, and a vertical rotating shaft 3 penetrates between the box body 1 and the support 2; three vertically-arranged liquid storage boxes 4 are uniformly distributed on the periphery of the box body 1, a rotatable lead screw 5 is mounted in each liquid storage box 4, and a squeezing plate 6 arranged in each liquid storage box 4 is connected to each lead screw 5 in a threaded manner; the side wall of the upper section of each liquid storage box 4 is connected with a liquid inlet pipe 7; the lower end of each liquid storage box 4 is connected with a liquid outlet pipe 8, and a pressure valve 9 is arranged on each liquid outlet pipe 8; an intermediate tank 10 with an upward opening is fixed in the box body 1, and the lower ends of the liquid outlet pipes 8 are positioned right above the intermediate tank 10; the bottom of the middle pool 10 is provided with a movable plate 11 which can move up and down, the movable plate 11 is fixed on the rotating shaft 3, and the rotating shaft 3 can move up and down and reset upwards; after the rotating shaft 3 is pressed, a gap is formed between the movable plate 11 and the side wall of the middle tank 10; a plurality of stirring shafts 14 positioned below the middle tank 10 are fixed on the rotating shaft 3;
a first PH value detector 15 is arranged at the bottom of the middle pool 10, and a second PH value detector 16 is arranged at the bottom of the box body 1;
the bracket 2 is provided with a fixed block 17 positioned above each liquid storage box 4, the fixed block 17 is inserted with a transverse guide rod 18 and a rack 19 positioned below the guide rod 18, and the right ends of the guide rod 18 and the rack 19 are connected with a vertical extrusion rod 20; the guide rod 18 can move left and right and reset towards the middle, the outer end of the guide rod 18 penetrates through and extends out of the bracket 2, and the outer end of the guide rod 18 is in a threaded shape and is screwed with a nut 21; an eccentric wheel 22 is fixed on the rotating shaft 3, and the eccentric wheel 22 can extrude a plurality of extrusion rods 20; the upper end of each screw rod is provided with a gear 23 through a one-way clutch, an eccentric wheel 22 extrudes an extrusion rod 20, after the extrusion rod 20 moves outwards, a rack 19 can drive the gear 23 to rotate, and the screw rods 5 rotate through the one-way clutch; thereby pushing the pressing plate 6 down.
In order to realize the up-and-down movement and upward reset of the rotating shaft 3, a rotatable sleeve 12 is arranged between the frame and the upper side plate of the box body 1, the rotating shaft 3 and the sleeve 12 are connected through a spline, a spring 13 is connected between the upper end of the rotating shaft 3 and the sleeve, and a compression bolt is arranged on the sleeve 12.
In order to facilitate the rotation of the rotating shaft 3, a hand wheel 24 is installed at the upper end of the rotating shaft 3.
In order to enable the guide rods 18 to be reset like a middle position, a compression spring 25 positioned between the fixed block 17 and the extrusion rod 20 is sleeved on each guide rod 18.
In order to discharge the neutralized sewage conveniently, a drain valve 26 is arranged at the bottom of the box body 1.
In order to facilitate feeding, a valve 27 is mounted on each liquid inlet pipe 7, and a handle 28 is mounted at the upper end of each screw 5.
In order to conveniently and independently rotate one of the screw rods 5, a one-way clutch is nested inside the gear 23, the one-way clutch is connected with the upper end of the screw rod 5 through a spline, and the one-way clutch and the gear 23 can simultaneously move upwards, so that the gear 23 is disengaged from the rack 19.
In order to compare the liquid outlet amount among the liquid storage boxes 4, the upper end surface of the guide rod 18 is cut into a horizontal plane, and a graduated scale is arranged at the same time.
In order to discharge the sewage in the middle tank 10 after the hand wheel 24 is rotated for one circle conveniently, the three liquid storage boxes 4 are respectively positioned at the left, right and rear three positions of the box body 1
In order to facilitate feeding, an air inlet is arranged at the upper end and the lower end of each liquid storage box 4, and a switch is arranged at the air inlet.
In order to avoid corrosion, all parts in the device are made of plastic materials; meanwhile, the liquid storage box 4, the box body 1 and the middle tank 10 are made of transparent materials.
In order to facilitate feeding, the upper end cover of the liquid storage box 4 is of a detachable structure and is connected into the liquid storage box 4 through threads.
In order to enable separate stirring, the eccentric 22 is mounted on the shaft 3 via a sleeve, on which a pressure bolt is mounted.
When the invention is used, firstly, acid liquor, alkali liquor and liquid to be treated are respectively added into the three liquid storage boxes 4; wherein, the acid liquor and the alkali liquor adopt weak acidic substances and weak alkaline substances, so as to avoid violent reaction.
The feeding operation is that the gear 23 is lifted by hands, the gear 23 is disengaged from the rack 19, then the handle 28 at the upper part of the screw 5 is rotated reversely, and after the screw 5 rotates reversely, the screw 5 drives the extrusion plate 6 to ascend; at this time, because the liquid outlet pipe 8 is provided with the pressure valve 9, only the liquid outlet can not enter the liquid outlet, so that the air inlet at the lower end of the liquid storage box 4 needs to be slightly opened, and when the extrusion plate 6 ascends, atmosphere can be supplemented into the liquid storage box 4; after the extrusion plate 6 rises to the top; the air inlet at the lower end of the liquid storage box 4 is closed; simultaneously opening an air inlet at the upper end of the liquid storage box 4 and a valve 27 on the liquid inlet pipe 7; the liquid inlet pipe 7 is used for supplementing the medicament in the liquid storage box 4; until the liquid level in the liquid storage box 4 is observed to be full, the air inlet at the upper end and the liquid inlet pipe 7 are closed.
In order to facilitate the feeding, the upper end cover can be detached to directly feed materials without opening and closing the valves 27 back and forth, but attention needs to be paid to protection, and corrosive liquid is prevented from adhering to hands.
Firstly, the principle of the device is as follows: after the rotating shaft 3 is rotated, the rotating shaft 3 drives the eccentric wheel 22 to rotate, and in the process that the eccentric wheel 22 rotates for one circle, the three extrusion rods 20 are respectively extruded, so that the extrusion rods 20 reciprocate once, and then each rack 19 also reciprocates once; thereby driving the gear 23 and the lead screw 5 to rotate in a single direction for a certain angle; through the rotation of the screw rod 5, the liquid in each liquid storage box 4 is extruded out of the pressure valve 9 of the liquid outlet pipe 8.
Meanwhile, the position of the nut 21 on the guide rod 18 is adjusted; the distance of the guide rod 18 to return to the middle can be adjusted, that is, after each eccentric 22 presses the extrusion rod 20, the stroke of the guide rod 18 to reciprocate can be adjusted; further influencing the angle of rotation of the screw 5 and the height of descent of the extrusion stem 20; thereby influencing the amount of the extruded medicament in each liquid storage box 4 when the rotating shaft 3 rotates for one circle; thereby forming a certain proportion of blanking and achieving a neutralization state as much as possible.
In addition, because the spring 13 is installed between the rotating shaft 3 and the sleeve 12, the spring 13 enables the rotating shaft 3 to return upwards, so the movable plate 11 fixed on the rotating shaft 3 can be tightly pressed on the side wall of the intermediate tank 10, thereby the intermediate and movable plates 11 form a groove shape, and the liquid dropping from the liquid storage box 4 in each circle can be firstly reacted in the intermediate tank 10; and detected by a first pH value detector 15; and can be eliminated in real time according to the requirement, only the rotating shaft 3 needs to be pressed downwards, the separation of the side wall of the middle pool 10 and the movable plate 11 at the bottom can be realized, and therefore the medicament in the middle pool 10 can be exhausted. In addition, when the residue of the intermediate tank 10 is not needed, the relationship between the rotating shaft 3 and the sleeve can be fixed by pressing the rotating shaft 3 and screwing the pressing bolt on the sleeve 12, so that the movable partition plate and the intermediate tank 10 can always keep a gap; the reagent can directly flow downwards for reaction.
The device has a plurality of use modes:
1. in the titration mode, the liquid medicine is squeezed into the intermediate tank 10 after being manually rotated for one circle each time, and after full reaction and detection by the first pH value detector 15, the rotating shaft 3 is pressed, so that the sewage in the intermediate tank 10 is discharged from the interval between the side wall of the intermediate tank 10 and the movable plate 11.
2. Continuous neutralization mode, continuous rotation, no need of pause; the three kinds of chemicals enter the bottom of the tank 1 in a large amount and are stirred by the stirring shaft 14.
3. In the single stirring mode, the eccentric wheel 22 rotates; when the hold-down bolt between the cam and the rotating shaft 3 is loosened, the eccentric wheel 22 does not rotate, and only the rotating shaft 3 rotates independently; is suitable for slow neutralization in later period.
4. A certain reagent mode is independently added, and the corresponding rack 19 is directly pulled. Is suitable for regulating a certain medicament in a proper amount.
When the device is used specifically, a titration mode is firstly used, a small amount of extrusion is carried out each time, the first PH value detector 15 is observed, and then the position of the nut 21 is adjusted; determining the ratio of the liquid to be treated and the acid-base liquid in a repeated mode; when the liquid to be treated is acidic, the acid liquid can be zero, namely the acid liquid is not discharged; only lye is discharged. Through the pressing each time, the sewage after the reaction in the middle tank 10 can be discharged downwards in time, so that the next titration observation cannot be influenced.
After titration is carried out to a proper proportion, a continuous neutralization mode can be used for carrying out rapid and large-scale neutralization, meanwhile, after the rotating shaft 3 is pressed, the pressing bolt on the sleeve 12 is screwed tightly, the middle tank 10 loses the effect at the moment, and a large amount of medicament can directly pass through the middle tank 10 and fall into the box body 1 below; and the reaction is carried out sufficiently under the stirring action of the stirring shaft 14.
After the sewage is completely treated, observing the second pH value detector 16, if the sewage reaches the standard, directly opening the drain valve 26 for discharging, and if the pH value is not proper, drawing the rack 19 in an independent adjusting mode to add a small amount of acid and alkali; and stirring can be performed using a separate stirring mode as appropriate. Until reaching the emission standard.
Because the proportional relation between the sewage to be treated and the neutralizing additive is a difficult problem in the field, the device can rapidly determine the required proportion through a rapid and small-amount experiment mode by setting a special titration mode; and then the subsequent operation is performed.
The device realizes the adjustment of the discharge amount of each liquid storage box 4 by adjusting the nut 21 through arranging the guide rod 18, the nut 21 and the eccentric wheel 22, and has the advantages of simple operation, no risk, safety and reliability; meanwhile, the adjustment is convenient; can be adjusted and varied in real time. After the proportion is determined, the neutralization can be continuously carried out, and the proportion can be maintained, so that the treated sewage can quickly reach the neutralization device.
This device can make and rotate the round after, pending sewage and neutralizer flow a bit respectively through rotating, have realized adding in batches, can slow down the violent degree of reaction, avoid the excessive reaction, the heat of production is too big.
The device has strong adjustability, can deal with various conditions through four modes, and is convenient to freely operate.
Claims (10)
1. A small-batch laboratory sewage neutralization treatment device comprises a box body (1) and is characterized in that a support (2) is arranged above the box body (1), and a vertical rotating shaft (3) penetrates through the box body (1) and the support (2); three vertically-arranged liquid storage boxes (4) are uniformly distributed on the periphery of the box body (1), a rotatable lead screw (5) is mounted inside each liquid storage box (4), and an extrusion plate (6) arranged in each liquid storage box (4) is connected to each lead screw (5) in a threaded manner; the side wall of the upper section of each liquid storage box (4) is connected with a liquid inlet pipe (7); the lower end of each liquid storage box (4) is connected with a liquid outlet pipe (8), and a pressure valve (9) is arranged on each liquid outlet pipe (8); a middle pool (10) with an upward opening is fixed in the box body (1), and the lower ends of the liquid outlet pipes (8) are positioned right above the middle pool (10); the bottom of the middle pool (10) is provided with a movable plate (11) which can move up and down, the movable plate (11) is fixed on the rotating shaft (3), and the rotating shaft (3) can move up and down and reset upwards; after the rotating shaft (3) is pressed, a gap is formed between the movable plate (11) and the side wall of the middle pool (10); a plurality of stirring shafts (14) positioned below the middle tank (10) are fixed on the rotating shaft (3);
a first PH value detector (15) is installed at the bottom of the middle pool (10), and a second PH value detector (16) is installed at the bottom of the box body (1);
a fixed block (17) positioned above each liquid storage box (4) is arranged on the bracket (2), a transverse guide rod (18) and a rack (19) positioned below the guide rod (18) are inserted into the fixed block (17), and the right ends of the guide rod (18) and the rack (19) are connected with a vertical extrusion rod (20); the guide rod (18) can move left and right and reset towards the middle, the outer end of the guide rod (18) penetrates through and extends out of the bracket (2), and the outer end of the guide rod (18) is in a thread shape and is screwed with a nut (21); an eccentric wheel (22) is fixed on the rotating shaft (3), and the eccentric wheel (22) can extrude a plurality of extrusion rods (20); the upper end of each screw rod is provided with a gear (23) through a one-way clutch, an eccentric wheel (22) extrudes an extrusion rod (20), and after the extrusion rod (20) moves outwards, a rack (19) can drive the gear (23) to rotate and drive the screw rod (5) to rotate through the one-way clutch; thereby pushing the extrusion plate (6) to descend.
2. The small-batch laboratory sewage neutralization treatment device according to claim 1, characterized in that a rotatable sleeve (12) is installed between the rack and the upper side plate of the box body (1), the rotating shaft (3) and the sleeve (12) are connected through a spline, a spring (13) is connected between the upper end of the rotating shaft (3) and the sleeve, and a compression bolt is installed on the sleeve (12).
3. The small-batch laboratory sewage neutralization treatment plant according to claim 1, characterized in that a hand wheel (24) is mounted on the upper end of the rotating shaft (3).
4. The small-batch laboratory sewage neutralization treatment plant according to claim 1, characterized in that each guide rod (18) is fitted with a compression spring (25) between the fixed block (17) and the extrusion rod (20).
5. The small batch laboratory wastewater neutralization treatment apparatus according to claim 1, characterized in that a drain valve (26) is installed at the bottom of the tank body (1).
6. The small-batch laboratory sewage neutralization treatment plant according to claim 1, characterized in that each of said inlet pipes (7) is provided with a valve (27), and the upper end of each screw (5) is provided with a handle (28).
7. The small batch laboratory wastewater neutralization treatment apparatus according to claim 1, characterized in that a one-way clutch is nested inside the gear (23), the one-way clutch is connected with the upper end of the screw rod (5) through a spline, and the one-way clutch and the gear (23) can simultaneously move upwards, so that the gear (23) is disengaged from the rack (19).
8. The small batch laboratory wastewater neutralization treatment apparatus according to claim 1, wherein the upper end surface of the guide bar (18) is cut into a horizontal plane and is provided with a scale.
9. The small-batch laboratory sewage neutralization treatment plant according to claim 1, characterized in that three of said reservoirs (4) are respectively located at the left, right and rear three positions of the tank (1).
10. The small-batch laboratory sewage neutralization treatment plant according to claim 1, characterized in that each of said liquid storage boxes (4) is provided with an air inlet at its upper and lower end, and a switch is provided at the air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011369540.9A CN112479337B (en) | 2020-11-30 | 2020-11-30 | Small-batch laboratory sewage neutralization treatment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011369540.9A CN112479337B (en) | 2020-11-30 | 2020-11-30 | Small-batch laboratory sewage neutralization treatment device |
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| CN112479337A CN112479337A (en) | 2021-03-12 |
| CN112479337B true CN112479337B (en) | 2021-11-09 |
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| CN202011369540.9A Active CN112479337B (en) | 2020-11-30 | 2020-11-30 | Small-batch laboratory sewage neutralization treatment device |
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