Automatic treatment device for laboratory sewage

Abstract

The utility model discloses an automatic treatment device for laboratory sewage, which belongs to the field of laboratory sewage treatment and comprises a neutralizing tank, an electrical control cabinet, a low-temperature pump and a low-temperature and low-pressure evaporation condenser, the low-temperature and low-pressure evaporation condenser comprises a base, and the top of the base is fixedly connected with a rack and a mounting support. A lifting table is arranged on one side of the rack, and a water-oil bath pan is fixedly connected to the top of the lifting table; by setting the characteristic that evaporation points of different elements are different, water is evaporated and condensed after laboratory sewage is subjected to neutralization reaction, so that purified water and a high-concentration stock solution are obtained, the automation degree is high, automatic control is realized from neutralization reaction to feeding, evaporation, condensation and discharging, and the production cost is reduced. Various defects of manual operation in the prior art are overcome, working efficiency is greatly improved, productivity is liberated, personal safety is protected to the maximum extent, and environment safety and equipment safety are protected.

Description

TECHNICAL FIELD

[0001] The utility model belongs to laboratory sewage treatment technical field, and specifically relates to a kind of for laboratory sewage automation processing device. BACKGROUND

[0002] Laboratory sewage is a relatively special and complex processing object, its characteristics and processing needs are different from ordinary sewage, laboratory sewage can contain various organic matter, inorganic matter, biological substance and microorganism etc., the type and content of these pollutants are often very complex, the concentration of various pollutants in laboratory sewage is usually very high, can be several times or even several dozens times of general domestic sewage, the composition of pollutant in laboratory sewage often changes, so the stability and adaptability requirement of sewage treatment technology is very high;

[0003] However, the existing laboratory sewage treatment device needs to manually pour the sewage into the neutralization tank during operation, and then manually take down the distillation bottle after neutralization reaction, manually pour the neutralizing liquid into the evaporator, manually collect the condensate and the concentrated liquid left after distillation into the specified container again after evaporation and condensation, which not only easily damages the equipment during operation, but also endangers the personal safety of the operator and causes secondary environmental pollution, therefore, the utility model provides a kind of laboratory sewage low-temperature and low-pressure automatic processing device. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of laboratory sewage automatic processing device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of laboratory sewage automatic processing device, including neutralization tank, electrical control cabinet, pumping, low-temperature pump and low-temperature and low-pressure evaporation condenser, the low-temperature and low-pressure evaporation condenser includes base, the top of the base is fixedly connected with rack and mounting bracket, one side of the rack is equipped with lifting platform, the top of the lifting platform is fixedly connected with water oil bath pot, one side of the water oil bath pot bottom is equipped with drain pipe, the top of the water oil bath pot is equipped with rotary evaporation dish, one end of the rotary evaporation dish is equipped with connecting motor, the side of the rotary evaporation dish is communicated with gas bottle, one port of the gas bottle is equipped with inlet electric valve, pumping electric valve, inlet air electric valve, one interface of the gas bottle is fixedly communicated with three-way adapter pipe connection, the top of the three-way adapter pipe is equipped with condenser, the bottom of the three-way adapter pipe is equipped with collection bottle, one side of the three-way adapter pipe is equipped with vacuum port, negative pressure table is equipped at the vacuum port.

[0006] As a preferred implementation, the neutralization tank is externally provided with a PH detector and a liquid level detector, the top of the neutralization tank is provided with an explosion-proof motor, the bottom end of the explosion-proof motor is provided with a stirring rod, and the neutralization tank is communicated with the rotary evaporating dish through a No.

[0007] As a preferred implementation, the low-temperature pump is provided with a water inlet end, the water inlet end is communicated with the water outlet of the condenser through a No.

[0008] As a preferred implementation, the gas bottle is provided with a feeding electric valve, a material pumping electric valve and an air inlet electric valve on one side, the feeding electric valve is connected with the condenser and the neutralization tank through a pipe, and the material pumping electric valve is connected with the material pumping pump through a pipe.

[0009] As a preferred implementation, the condenser and the gas bottle are each provided with a vacuum port on one side, and the vacuum port is externally connected with a vacuum pump.

[0010] As a preferred implementation, the collecting bottle is provided with a polyurethane sliding block check valve at the connection position of the collecting bottle and the three-way adapter pipe, the bottom of the collecting bottle is provided with a material discharging electric valve, and the top of the collecting bottle is provided with a gas discharging electric valve and a vacuum electric valve on one side.

[0011] As a preferred implementation, one interface of the negative pressure gauge is connected with the vacuum pump, another interface of the negative pressure gauge is connected with the vacuum interface end of the three-way adapter pipe, and another interface of the negative pressure gauge is connected with the vacuum electric valve pipe at the top of the collecting bottle.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The laboratory sewage automatic treatment device uses the characteristics that the evaporation points of different elements are different, and after neutralization reaction, water evaporation and condensation, pure water (electric conductivity 5-10 uS / cm, PH value 6.5-8.5) and high-concentration stock solution (or crystalline salt) are obtained. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 The flow chart of the utility model structure is shown in the drawings.

[0015] Fig. 2 The partial flow chart of the utility model structure is shown in the drawings.

[0016] In the figure: 1, neutralizing pool; 101, explosion-proof motor; 102, PH detector; 103, liquid level detector; 104, stirring rod; 2, low temperature pump; 201, water inlet end; 202, drainage end; 3, pumping pump; 4, vacuum pump; 5, low temperature and low pressure evaporation condensation instrument; 501, base; 502, mounting bracket; 503, lifting platform; 504, water-oil bath pot; 505, drain pipe; 506, rotary evaporating dish; 5061, negative pressure gauge; 507, rack; 508, collection bottle; 5081, polyurethane sliding block check valve; 5082, discharge electric valve; 509, three-way switching pipe; 5010, air bottle; 5011, feeding electric valve; 5012, air discharge electric valve; 5013, condenser. DETAILED DESCRIPTION

[0017] The utility model will be further described below in combination with examples.

[0018] The following examples are used to illustrate the utility model, but cannot be used to limit the protection scope of the utility model. The conditions in the examples can be further adjusted according to specific conditions, and simple improvement of the method of the utility model under the concept of the utility model belongs to the range required to be protected by the utility model.

[0019] Please refer to Figs. 1-2The utility model provides a kind of for laboratory sewage automation processing device, including neutralization pond 1, electrical control cabinet, pumping pump 3, cryogenic pump 2 and cryogenic low pressure evaporation condensing instrument 5, cryogenic low pressure evaporation condensing instrument 5 includes base 501, the top of base 501 is fixedly connected with rack 507 and mounting bracket 502, one side of rack 507 is equipped with lifting platform 503, the top of lifting platform 503 is fixedly connected with water oil bath pot 504, one side of water oil bath pot 504 bottom is equipped with drain pipe 505, the top of water oil bath pot 504 is equipped with rotary evaporating dish 506, one end of rotary evaporating dish 506 is equipped with connecting motor, rotary evaporating dish 506 side is communicated with gas bottle 5010, and one port of gas bottle 5010 is equipped with feed motor valve, pumping motor valve, air inlet motor valve, one interface of gas bottle 5010 is fixedly communicated with three-way adapter pipe 509 connection, the top of three-way adapter pipe 509 is equipped with condenser 5013, the bottom of three-way adapter pipe 509 is equipped with collection bottle 508, one side of three-way adapter pipe 509 is equipped with vacuum extraction port, and vacuum extraction port is equipped with negative pressure table 5061, one side of gas bottle 5010 is equipped with feed motor valve 5011, pumping motor valve and air inlet motor valve, feed motor valve 5011 is connected by conduit and neutralization pond 1, pumping motor valve is connected by conduit and pumping pump 3, condenser 5013 and one side of gas bottle 5010 are equipped with vacuum port respectively, vacuum port is connected with vacuum pump 4 outside, the junction of collection bottle 508 and three-way adapter pipe 509 is equipped with polyurethane sliding block check valve 5081, the bottom of collection bottle 508 is equipped with discharge motor valve 5082, one side of collection bottle 508 top is equipped with air release motor valve 5012 and vacuum motor valve;

[0020] The laboratory sewage is first collected and transported to the neutralization tank 1, in the neutralization tank 1, by adding an appropriate amount of neutralizing reagent, using the stirring rod 104 driven by the explosion-proof motor 101 to stir fully, so that the pH value of the sewage reaches the preset range, the pH detector 102 monitors the pH value of the sewage in real time, and adjusts as needed, when the sewage in the neutralization tank 1 reaches the treatment condition, the electrical control cabinet sends a command to start the pumping pump 3, the pumping pump 3 draws the sewage from the neutralization tank 1 through the feeding electric valve 5011 and transports it to the rotary evaporating dish 506, after the sewage enters the rotary evaporating dish 506, it is driven to rotate by the connecting motor, at the same time, the water oil bath 504 starts to heat to provide the heat required for evaporation, the sewage is evaporated in the rotary evaporating dish 506, the generated steam enters the condenser 5013 through the gas bottle 5010, the condenser 5013 forms a low pressure environment under the action of the vacuum pump 4, which accelerates the condensation process of the steam, the purified water after condensation flows into the collection bottle 508 through the three-way adapter pipe 509, when the purified water in the collection bottle 508 reaches a certain amount, the purified water is discharged to the designated collection system by opening the discharge electric valve 5082, the gas generated in the condensation process can be discharged through the air release electric valve 5012, during the whole treatment process, the electrical control cabinet monitors the working state of each part in real time to ensure the stable operation of the system, when an abnormal situation occurs, the electrical control cabinet will send an alarm signal and take corresponding protection measures;

[0021] Through the intelligent control of the electrical control cabinet, the whole process automation from sewage pretreatment to evaporation and condensation treatment is realized, the treatment efficiency is greatly improved, the low temperature and low pressure evaporation and condensation technology is adopted, the harmful substances in the sewage are effectively removed, the quality of the purified water is high, which meets the national relevant emission standards, compared with the traditional treatment method, the device has lower energy consumption, and the resource is recycled by recycling the purified water, which meets the requirements of energy saving and environmental protection, the whole device has compact structure and simple operation, is easy to learn and master, and is suitable for laboratory sewage treatment requirements of various scales.

[0022] The neutralization tank 1 is externally provided with a pH detector 102 and a liquid level detector 103, the top of the neutralization tank 1 is provided with an explosion-proof motor 101, the bottom end of the explosion-proof motor 101 is provided with a stirring rod 104, the neutralization tank 1 is communicated with the rotary evaporating dish 506 through a No. 1 conduit, and is used for primary neutralization treatment of laboratory sewage. The neutralization tank 1 is externally provided with a pH detector 102 and a liquid level detector 103, the top of the neutralization tank 1 is provided with an explosion-proof motor 101, the bottom end of the explosion-proof motor 101 is provided with a stirring rod 104, the neutralization tank 1 is communicated with the rotary evaporating dish 506 through a No. 1 conduit, and is used for primary neutralization treatment of laboratory sewage.

[0023] In addition, the low-temperature pump 2 is provided with a water inlet end 201, the water inlet end 201 is communicated with the water outlet of the condenser 5013 through a No. 2 conduit, the low-temperature pump 2 is provided with a water outlet end 202, the water outlet end 202 is fixedly communicated with the water inlet of the condenser 5013 through a No. 3 conduit, for providing circulating water in the evaporation and condensation process, the low-temperature pump 2 is provided with the water inlet end 201 and the water outlet end 202, and is communicated with the water outlet of the condenser 5013 and the water inlet of the condenser 5013 through the No. 2 conduit and the No. 3 conduit respectively, to form a circulating water path.

[0024] And one interface of the negative pressure gauge 5061 is connected with the vacuum pump 4, another interface of the negative pressure gauge 5061 is connected with the vacuum interface end of the three-way adapter pipe 509, and another interface of the negative pressure gauge 5061 is connected with the vacuum electric valve conduit at the top of the collection bottle 508, the negative pressure gauge 5061 has multiple interfaces, one of which is connected with the vacuum pump 4 for receiving the negative pressure signal generated by the vacuum pump 4, another interface is connected with the vacuum interface end of the three-way adapter pipe 509, which is used to monitor the negative pressure state in the rotary evaporating dish 506 and the venting bottle 5010, and another interface is connected with the vacuum electric valve at the top of the collection bottle 508 through a conduit, which is used to control and monitor the negative pressure state in the collection bottle 508 when necessary, when the vacuum pump 4 starts, it begins to extract the air in the venting bottle 5010 and the rotary evaporating dish 506, forming a negative pressure environment, the negative pressure gauge 5061 monitors the pressure value of this negative pressure environment in real time through the interface connected to the three-way adapter pipe 509, if the negative pressure value reaches the preset range, the vacuum pump 4 will continue to operate stably or adjust its working state according to the control strategy, if it is necessary to adjust the negative pressure value, the electrical control cabinet can send a signal to the vacuum pump 4 to change its air extraction rate, at the same time, the electrical control cabinet can also control the opening and closing of the vacuum electric valve at the top of the collection bottle 508 to further adjust the negative pressure state in the collection bottle 508, the negative pressure gauge 5061 continuously monitors these changes and provides real-time negative pressure readings for reference by the operator or the control system, if the negative pressure value exceeds the safety range (such as excessively high or low negative pressure), the negative pressure gauge 5061 will trigger an alarm signal, after the electrical control cabinet receives the alarm signal, it will take corresponding protective measures such as shutdown, power-off or adjustment of the working state of the vacuum pump 4 to prevent equipment damage or safety accidents, the negative pressure gauge 5061 needs to be regularly maintained and calibrated to ensure its accuracy and reliability.

[0025] It needs to be explained in the above scheme that the electrical control cabinet, the low-temperature pump 2, the motor and the rotary evaporating dish 506 are all prior art, so they are not described in detail.

[0026] The working principle and use process of the utility model: laboratory sewage is first collected and transported to neutralizing tank 1, in neutralizing tank 1, by adding appropriate neutralizing reagent, using the stirring rod 104 driven by explosion-proof motor 101 carries out sufficient stirring, makes the acid-base degree in sewage reach the preset range, and PH detector 102 real-time monitoring the acid-base degree of sewage, and according to need carries out adjustment, when the sewage in neutralizing tank 1 reaches the processing condition, electrical control cabinet sends out instruction, starts pumping pump 3, and pumping pump 3 passes through feed motor valve 5011 and exports the sewage from neutralizing tank 1, and is transported to rotary evaporating dish 506, and after the sewage enters rotary evaporating dish 506, by connecting motor drive rotation, simultaneously, water oil bath pot 504 starts heating, provides the heat required for evaporation, and the sewage is evaporated in rotary evaporating dish 506, and the steam generated enters condenser 5013 through gas washing bottle 5010, and condenser 5013 forms low pressure environment under the action of vacuum pump 4, accelerates the condensation process of steam, and the pure water after condensation flows into collecting bottle 508 through tee adapter 509, when the pure water in collecting bottle 508 reaches certain amount, by opening discharge motor valve 5082, the pure water is discharged to the designated collection system, and the gas generated in the condensation process can be discharged through air release motor valve 5012, in the whole processing process, electrical control cabinet real-time monitoring the working state of each component, ensures the stable operation of system, when the abnormal situation appears, electrical control cabinet will send alarm signal, and takes corresponding protection measures, when vacuum pump 4 starts, it starts to extract the air in gas washing bottle 5010 and rotary evaporating dish 506, forms negative pressure environment, and negative pressure table 5061 is connected to tee adapter 509 through its interface, and real-time monitoring the pressure value of this negative pressure environment, if the negative pressure value reaches the preset range, vacuum pump 4 will continue stable operation or adjusts its working state according to control strategy, if it is necessary to adjust the negative pressure value, electrical control cabinet can send signal to vacuum pump 4, changes its air extraction rate, simultaneously, electrical control cabinet can also control the opening and closing of vacuum motor valve on the top of collecting bottle 508, to further adjust the negative pressure state in collecting bottle 508, and negative pressure table 5061 continuously monitors these changes, and provides real-time negative pressure reading for the reference of operator or control system.

[0027] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principle of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An automated wastewater treatment device for laboratories, comprising a neutralization tank (1), an electrical control cabinet, a feed pump (3), a cryogenic pump (2), and a cryogenic low-pressure evaporator / condenser (5), characterized in that: The low-temperature, low-pressure evaporator-condenser (5) includes a base (501), with a frame (507) and a mounting bracket (502) fixedly connected to the top of the base (501). A lifting platform (503) is provided on one side of the frame (507), and a water-oil bath (504) is fixedly connected to the top of the lifting platform (503). A drain pipe (505) is provided on one side of the bottom of the water-oil bath (504), and a rotating evaporator (506) is provided on the top of the water-oil bath (504). A motor is connected to one end of the rotating evaporator (506). A venting bottle (5010) is connected to one side of the rotary evaporating dish (506). The venting bottle has an external port equipped with a feed electric valve, a suction electric valve, and an air inlet electric valve. A three-way connector (509) is fixedly connected to one interface of the venting bottle (5010). A condenser (5013) is provided at the top of the three-way connector (509). A collection bottle (508) is provided at the bottom of the three-way connector (509). A vacuum port is provided on one side of the three-way connector (509). A negative pressure gauge (5061) is provided at the vacuum port.

2. The automated laboratory wastewater treatment device according to claim 1, characterized in that: The neutralization tank (1) is equipped with a pH meter (102) and a liquid level meter (103) on the outside. The top of the neutralization tank (1) is equipped with an explosion-proof motor (101), and the bottom of the explosion-proof motor (101) is equipped with a stirring rod (104). The neutralization tank (1) is connected to the rotary evaporating dish (506) through a first conduit.

3. The automated laboratory wastewater treatment device according to claim 1, characterized in that: The cryogenic pump (2) has an inlet end (201) on one side, and the inlet end (201) is connected to the outlet of the condenser (5013) through a second conduit. The cryogenic pump (2) has a drain end (202) on one side, and the drain end (202) is fixedly connected to the inlet of the condenser (5013) through a third conduit.

4. The automated laboratory wastewater treatment device according to claim 1, characterized in that: The gas cylinder (5010) is provided with a feed electric valve (5011), a material extraction electric valve and an air intake electric valve on one side. The feed electric valve (5011) is externally connected to the neutralization tank (1) by a conduit, and the material extraction electric valve is connected to the material extraction pump (3) by a conduit.

5. The automated laboratory wastewater treatment device according to claim 1, characterized in that: The condenser (5013) and the gas cylinder (5010) are each provided with a vacuum port on one side, and a vacuum pump (4) is connected to the vacuum port.

6. The automated laboratory wastewater treatment device according to claim 5, characterized in that: A polyurethane slider check valve (5081) is provided at the connection between the collection bottle (508) and the three-way adapter (509). A discharge electric valve (5082) is provided at the bottom of the collection bottle (508). A venting electric valve (5012) and a vacuum electric valve are provided on one side of the top of the collection bottle (508).

7. An automated laboratory wastewater treatment device according to claim 6, characterized in that: One interface of the negative pressure gauge (5061) is connected to the vacuum pump (4), the other interface of the negative pressure gauge (5061) is connected to the vacuum interface end of the three-way adapter (509), and the other interface of the negative pressure gauge (5061) is connected to the vacuum electric valve conduit at the top of the collection bottle (508).

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