Chemical experiment wastewater treatment device

Abstract

The utility model relates to the technical field of wastewater treatment, in particular to a chemical experiment wastewater treatment device. The utility model provides a chemical experiment wastewater treatment device which is uniform in drug stirring, high in neutralization efficiency and capable of automatically feeding drugs. A chemical experiment wastewater treatment device comprises a stirring barrel, a filter screen, a water outlet cover, an upper cover, a dosing tank and the like, the filter screen is connected to the middle of the inner side of the stirring barrel, the bottom of the stirring barrel is in threaded connection with the water outlet cover, the upper cover is connected to the upper portion of the stirring barrel, and the dosing tank is connected to the left side of the top of the upper cover. The motor drives the rotating shaft to rotate, then the bevel gears rotate, the first stirring rod and the second stirring rod rotate in opposite directions under the action of mutual cooperation of the bevel gears, and then the stirring fan blades stir drugs and waste water, so that the drugs and the waste water are fully mixed, the neutralization speed is increased, and the efficiency is improved. The efficiency of neutralizing the wastewater is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a chemical experiment wastewater treatment device. Background Art

[0002] Chemical laboratory wastewater usually needs to be treated to meet the discharge standards. Treatment methods include physical, chemical and biological treatment, etc. The specific method to be used depends on the nature of the wastewater and the treatment objectives. During the treatment process, it is necessary to monitor the concentration of harmful substances in the wastewater to ensure that the treatment effect meets the discharge standards.

[0003] Existing chemical laboratory wastewater treatment uses drugs for neutralization, and the drugs are not stirred evenly, resulting in insufficient mixing of the drugs and wastewater, causing drug precipitation, resulting in drug waste and low neutralization efficiency. When drugs need to be added, the drugs are manually added to the wastewater, and the wastewater splashes and contacts the skin, causing harm to personnel, and the safety is low.

[0004] Therefore, it is necessary to design a chemical experiment wastewater treatment device that can stir drugs evenly, has high neutralization efficiency, and can automatically add drugs. Utility Model Content

[0005] In order to overcome the shortcomings of existing chemical laboratory wastewater treatment that neutralizes with drugs, uneven stirring of drugs leading to drug waste, low neutralization efficiency, and low safety of manual drug addition, the technical problem of the utility model is to provide a chemical laboratory wastewater treatment device that can stir drugs evenly, has high neutralization efficiency, and can automatically add drugs.

[0006] The technical implementation scheme of the utility model is: a chemical experiment wastewater treatment device, comprising a stirring barrel, a filter, a water outlet cover, an upper cover, a dosing tank, a wastewater funnel, a screen basket, a pH tester and a stirring mechanism, wherein the filter is connected to the middle of the inner side of the stirring barrel, the water outlet cover is connected to the bottom of the stirring barrel through a thread, the upper part of the stirring barrel is connected to the upper cover, the dosing tank is connected to the left side of the top of the upper cover, the wastewater funnel is connected to the right side of the top of the upper cover, the screen basket is connected to the front side of the top of the upper cover, the screen basket is connected to the pH tester, and the stirring mechanism for allowing alkaline drugs to fully react with wastewater is provided in the middle of the top of the upper cover.

[0007] Furthermore, the stirring mechanism includes a motor, a rotating shaft, a bevel gear, a first stirring rod and a second stirring rod. The motor is connected to the rear side of the top of the upper cover, the rotating shaft is connected to the output shaft of the motor, the front part of the rotating shaft is rotatably connected to the bevel gear, the middle part of the upper cover is rotatably connected to the second stirring rod, the inner side of the second stirring rod is rotatably connected to the first stirring rod, the upper parts of the first stirring rod and the second stirring rod are both connected to the bevel gear, and the bevel gear at the front of the rotating shaft is meshed with the bevel gears on the first stirring rod and the second stirring rod; the rotating shaft is driven to rotate by the motor, and then the bevel gear rotates, and under the cooperation of the bevel gears, the first stirring rod and the second stirring rod rotate in opposite directions to stir the medicine and wastewater.

[0008] Furthermore, it also includes a support frame, and three of the support frames are connected to the middle of the mixing barrel to support the mixing barrel.

[0009] Furthermore, stirring blades are connected to the outer sides of the first stirring rod and the second stirring rod.

[0010] Furthermore, it also includes a dosing mechanism, which includes a rotating plate, a torsion spring and a rotating pressure block. The rotating pressure block is connected to the rotating shaft, and the rotating plate is rotatably connected to the right side of the dosing tank. The rotating plate is in contact and cooperate with the rotating pressure block, and the torsion spring is connected between the rotating plate and the dosing tank; the rotating pressure block is driven to rotate by the motor so that the rotating pressure block is in contact and cooperate with the rotating plate, and under the action of the torsion spring, the rotating plate rotates back and forth to drop the medicine intermittently.

[0011] Furthermore, a connecting pipe is connected to the top of the medicine adding tank, and medicine can be injected into the medicine adding tank through the connecting pipe.

[0012] The beneficial effects are: 1. The utility model drives the rotating shaft to rotate through the motor, and then the bevel gear rotates. Under the mutual cooperation of the bevel gears, the first stirring rod and the second stirring rod rotate in opposite directions, and then the stirring blades stir the medicine and wastewater, so that the medicine and wastewater are fully mixed, the neutralization speed is accelerated, and the efficiency of neutralizing wastewater is improved.

[0013] 2. The utility model starts the motor, and the motor drives the rotating shaft to rotate. At the same time, the rotating shaft also drives the rotating pressure block to rotate. The rotating pressure block rotates and intermittently presses the rotating plate. Under the action of the torsion spring, the rotating plate rotates back and forth to drop the medicine intermittently, thereby achieving the effect of automatic drug addition, preventing manual delivery from causing danger to personnel, and improving the safety of drug delivery. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 It is a cross-sectional view of the utility model.

[0016] Figure 3 It is a schematic diagram of the three-dimensional structure of the stirring mechanism of the utility model.

[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the medicine adding mechanism of the utility model.

[0018] Figure numbers: 1_support frame, 2_mixing barrel, 3_filter screen, 4_water outlet cover, 5_upper cover, 6_dosing tank, 7_wastewater funnel, 8_sieve basket, 9_PH tester, 10_mixing mechanism, 101_motor, 102_rotating shaft, 103_bevel gear, 104_first stirring rod, 105_second stirring rod, 11_dosing mechanism, 111_rotating plate, 112_torsion spring, 113_rotating block. DETAILED DESCRIPTION

[0019] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0020] A chemical experimental wastewater treatment device, such as Figure 1-Figure 4 As shown, it includes a stirring barrel 2, a filter screen 3, a water outlet cover 4, an upper cover 5, a dosing tank 6, a wastewater funnel 7, a screen basket 8, a pH tester 9 and a stirring mechanism 10, and also includes a support frame 1. Three of the support frames 1 are connected to the middle of the stirring barrel 2 to support the stirring barrel 2. The filter screen 3 is connected to the middle of the inner side of the stirring barrel 2. The water outlet cover 4 is connected to the bottom of the stirring barrel 2 through a thread. The upper part of the stirring barrel 2 is connected to the upper cover 5. The dosing tank 6 is connected to the left side of the top of the upper cover 5. The top of the dosing tank 6 is connected to a connecting pipe, through which the drug can be injected into the dosing tank 6. The wastewater funnel 7 is connected to the right side of the top of the upper cover 5. The screen basket 8 is connected to the front side of the top of the upper cover 5. The pH tester 9 is connected to the screen basket 8. The stirring mechanism 10 for fully reacting the alkaline drug with the wastewater is provided in the middle of the top of the upper cover 5.

[0021] like Figure 1-Figure 3As shown, the stirring mechanism 10 includes a motor 101, a rotating shaft 102, a bevel gear 103, a first stirring rod 104 and a second stirring rod 105. The motor 101 is connected to the rear side of the top of the upper cover 5, the rotating shaft 102 is connected to the output shaft of the motor 101, the front part of the rotating shaft 102 is rotatably connected to the bevel gear 103, the middle part of the upper cover 5 is rotatably connected to the second stirring rod 105, the inner side of the second stirring rod 105 is rotatably connected to the first stirring rod 104, the upper parts of the first stirring rod 104 and the second stirring rod 105 are both connected to the bevel gear 103, the bevel gear 103 at the front of the rotating shaft 102 is meshed with the bevel gears 103 on the first stirring rod 104 and the second stirring rod 105, and the outer sides of the first stirring rod 104 and the second stirring rod 105 are both connected to stirring blades.

[0022] When it is necessary to treat chemical laboratory wastewater, the device can be used to inject wastewater into the stirring barrel 2 through the wastewater funnel 7, and to load alkaline drugs into the dosing tank 6 through the connecting pipe. The alkaline drugs fall into the stirring barrel 2 and mix with the chemical laboratory wastewater, thereby neutralizing the acidic substances in the wastewater to treat the wastewater. The motor 101 is started, and the motor 101 drives the rotating shaft 102 to rotate, and then the bevel gear 103 rotates. Under the action of the mutual cooperation of the bevel gear 103, the first stirring rod 104 and the second stirring rod 105 rotate in opposite directions, and then the stirring blades stir the drugs and wastewater, so that the drugs and wastewater are fully mixed. The mixed wastewater enters the screen basket 8, and the mixed wastewater is tested by the PH tester 9. Whether the wastewater is neutralized cleanly can be determined by observing the PH tester 9. If it is not neutralized cleanly, alkaline drugs are added again through the dosing tank 6 for neutralization. During the neutralization process, the drugs are dissolved in the wastewater, and the undissolved drugs and waste residues in the wastewater remain on the filter screen 3. After the neutralization is completed, the motor 101 is turned off, and the wastewater is no longer stirred. The neutralized wastewater flows to the bottom of the mixing barrel 2 through the filter screen 3, and the neutralized wastewater is discharged by opening the water outlet cover 4. After the wastewater is discharged, the water outlet cover 4 is closed.

[0023] like Figure 1 , Figure 2 and Figure 4 As shown, it also includes a dosing mechanism 11, which includes a rotating plate 111, a torsion spring 112 and a rotating pressure block 113. The rotating pressure block 113 is connected to the rotating shaft 102, and the rotating plate 111 is rotatably connected to the right side of the dosing tank 6. The rotating plate 111 is in contact and cooperate with the rotating pressure block 113, and the torsion spring 112 is connected between the rotating plate 111 and the dosing tank 6.

[0024] When the motor 101 is started and the motor 101 drives the rotating shaft 102 to rotate, the rotating shaft 102 also drives the rotating pressing block 113 to rotate. The rotating pressing block 113 intermittently presses the rotating plate 111 when it rotates. Under the action of the torsion spring 112, the rotating plate 111 rotates back and forth to drop the medicine intermittently, thereby achieving the effect of automatic drug addition, preventing danger to personnel caused by manual delivery, and improving the safety of drug delivery.

[0025] The above embodiments are provided for persons familiar with the art to implement or use the present invention. Personnel familiar with the art can make various modifications or changes to the above embodiments without departing from the utility model concept of the present invention. Therefore, the protection scope of the present invention is not limited to the above embodiments, but should be the maximum scope of the innovative features mentioned in the claims.

Claims

1. A chemical experiment wastewater treatment device, characterized in that: The invention comprises a stirring barrel (2), a filter screen (3), a water outlet cover (4), an upper cover (5), a dosing tank (6), a wastewater funnel (7), a screen basket (8), a pH tester (9) and a stirring mechanism (10). The middle part of the inner side of the stirring barrel (2) is connected with the filter screen (3), the bottom of the stirring barrel (2) is connected with the water outlet cover (4) through a thread, the upper part of the stirring barrel (2) is connected with the upper cover (5), the left side of the top of the upper cover (5) is connected with the dosing tank (6), the right side of the top of the upper cover (5) is connected with the wastewater funnel (7), the front side of the top of the upper cover (5) is connected with the screen basket (8), the pH tester (9) is connected to the screen basket (8), and the stirring mechanism (10) for making the alkaline drug and wastewater fully react is provided in the middle of the top of the upper cover (5).

2. A chemical experiment wastewater treatment device according to claim 1, characterized in that: The stirring mechanism (10) comprises a motor (101), a rotating shaft (102), a bevel gear (103), a first stirring rod (104) and a second stirring rod (105); the motor (101) is connected to the rear side of the top of the upper cover (5); the rotating shaft (102) is connected to the output shaft of the motor (101); the front part of the rotating shaft (102) is rotatably connected to the bevel gear (103); the middle part of the upper cover (5) is rotatably connected to the second stirring rod (105); the inner side of the second stirring rod (105) is rotatably connected to the first stirring rod (104); the first stirring rod (104) is connected to the inner side of the second stirring rod (105 ... The upper parts of the rod (104) and the second stirring rod (105) are both connected with the bevel gear (103), and the bevel gear (103) at the front of the rotating shaft (102) is meshed with the bevel gears (103) on the first stirring rod (104) and the second stirring rod (105); the rotating shaft (102) is driven to rotate by the motor (101), and then the bevel gear (103) rotates, and under the action of the mutual cooperation of the bevel gears (103), the first stirring rod (104) and the second stirring rod (105) rotate in opposite directions to stir the medicine and wastewater.

3. A chemical experiment wastewater treatment device according to claim 2, characterized in that: It also comprises a support frame (1), and three support frames (1) are connected to the middle of the mixing barrel (2) to support the mixing barrel (2).

4. A chemical experiment wastewater treatment device according to claim 3, characterized in that: The first stirring rod (104) and the second stirring rod (105) are both connected to stirring blades on their outer sides.

5. A chemical experiment wastewater treatment device according to claim 4, characterized in that: The invention also comprises a medicine adding mechanism (11), wherein the medicine adding mechanism (11) comprises a rotating plate (111), a torsion spring (112) and a rotating pressing block (113); the rotating pressing block (113) is connected to the rotating shaft (102); the rotating plate (111) is rotatably connected to the right side of the medicine adding tank (6); the rotating plate (111) and the rotating pressing block (113) are in contact and cooperation; the torsion spring (112) is connected between the rotating plate (111) and the medicine adding tank (6); the rotating pressing block (113) is driven to rotate by the motor (101) so that the rotating pressing block (113) is in contact and cooperation with the rotating plate (111); under the action of the torsion spring (112), the rotating plate (111) rotates back and forth to drop the medicine intermittently.

6. A chemical experiment wastewater treatment device according to claim 5, characterized in that: The top of the medicine adding tank (6) is connected with a connecting pipe, and medicine can be injected into the medicine adding tank (6) through the connecting pipe.

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