Wastewater treatment device in neopentyl glycol production

Abstract

The utility model belongs to the technical field of wastewater treatment in neopentyl glycol production, and particularly relates to a wastewater treatment device in neopentyl glycol production. The device comprises a tank body, a water inlet is formed in the top of the tank body, a plurality of filter boxes are vertically distributed in the tank body, mounting ports are formed in the positions, corresponding to the filter boxes, of the tank body, and a turning cover is hinged to each mounting port; the right end of the turning cover is hinged with the tank body; a lock catch is arranged on the turning cover The filter box is mounted on the inner side surface of the turning cover; the bottom of the tank body is of a seal head structure, and a drain outlet is formed in the bottom of the seal head; a water outlet is formed in the side wall of the tank body. When the interior of the filter box and the interior of the tank body need to be cleaned, the lock catch is opened, the left end of the turning cover swings rightwards, and the filter box is moved out of the tank body from the corresponding mounting opening along with the turning cover, so that the filter box and the tank body are convenient to clean, the filter box is convenient to replace, filtered liquid enters the bottom of the tank body to be settled, upper-layer liquid is discharged from the water outlet, and settled impurities are discharged from the drain outlet. The purification effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of wastewater treatment in neopentyl glycol production, in particular to a wastewater treatment device in neopentyl glycol production. Background Art

[0002] The production process of neopentyl glycol produces high-concentration organic wastewater, which contains high concentrations of chemical oxygen demand (COD) and harmful substances such as formaldehyde. These pollutants are highly toxic to the environment and organisms, and direct discharge will cause serious pollution to the water body. Therefore, wastewater treatment must be carried out to reduce the concentration of pollutants and ensure that it meets environmental protection standards. The production wastewater of neopentyl glycol mainly includes pretreatment, adjusting the pH value of organic wastewater by acid or alkali to achieve suitable treatment conditions; main treatment, anaerobic biological treatment and aerobic biological treatment; and deep treatment, quartz sand filtration and activated carbon adsorption treatment.

[0003] When the wastewater from the production of neopentyl glycol is deeply treated, the existing wastewater treatment device has an increased pressure difference between the front and rear of the device due to long-term operation, and a large amount of impurities will accumulate in the filter layer, so backwashing is required to restore the filtering capacity of the filter layer; but in actual use, there is a problem of unclean flushing, and the structure of the backwashing equipment is relatively complex, which is prone to clogging and affects its normal operation; a large amount of water is also required for backwashing, which not only increases the consumption of water resources, but may also cause pressure on areas with tight water resources. Utility Model Content

[0004] The utility model aims to provide a device for treating wastewater in the production of neopentyl glycol, which is convenient for cleaning a filter box and a tank body and for replacing the filter box.

[0005] The wastewater treatment device in the production of neopentyl glycol comprises a vertically arranged tank body, a water inlet is arranged on the top of the tank body, a plurality of filter boxes are arranged in an upper and lower distribution in the tank body, and mounting openings communicating with each other are arranged at positions corresponding to the filter boxes on the tank body, and a flap capable of opening and closing the mounting opening is hinged at each mounting opening;

[0006] The right end of the flip cover is hinged to the tank body, and a lock is provided on the flip cover to lock the tank body after the installation opening is closed;

[0007] The filter box is installed on the inner side of the flip cover. When the flip cover is opened, the filter box moves out of the tank body from the corresponding installation opening along with the flip cover.

[0008] The bottom of the tank body is a head-end structure, and a sewage outlet is provided at the bottom of the head-end structure;

[0009] A water outlet is arranged on the side wall of the tank body below the filter box.

[0010] When the filter box and the inside of the tank need to be cleaned, open the lock, swing the left end of the flip cover to the right, and the filter box is moved out of the tank from the corresponding installation port along with the flip cover, so that the filter box and the inside of the tank are easy to clean and the filter box is easy to replace. The filtered liquid enters the bottom of the tank for sedimentation, the upper layer of liquid is discharged from the water outlet, and the precipitated impurities are discharged from the sewage outlet, which improves the purification effect.

[0011] Furthermore, the flip cover and the tank body are arranged in a tongue-and-groove configuration.

[0012] The tongue-and-groove design facilitates the installation of the switch while preventing the liquid in the tank from evaporating.

[0013] Furthermore, a sealing strip is provided at the joint between the flip cover and the tank body.

[0014] The flaps in contact with the mounting openings on the tank body are provided with sealing strips to improve the sealing performance of the interior and prevent the volatilization of the internal liquid.

[0015] Furthermore, the filter box includes a first filter box and a second filter box in sequence from top to bottom, the flip cover corresponding to the first filter box is a first flip cover, and the flip cover corresponding to the second filter box is a second flip cover.

[0016] The number of filter boxes is set according to the order of filtration.

[0017] Furthermore, the first filter box and the second filter box are both hinged to the tank body via hinges.

[0018] Hinges are easy to purchase and install.

[0019] Furthermore, the water inlet end of the water inlet is connected to a water inlet pipe, and a first valve is installed on the water inlet pipe.

[0020] The first valve controls the opening and closing of the water inlet pipe, so as to conveniently control whether the tank is working or not.

[0021] Furthermore, the liquid outlet end of the sewage outlet is connected to a sewage pipe, and a second valve is installed on the sewage pipe.

[0022] The second valve controls whether the liquid in the tank is discharged from the bottom, which facilitates the sedimentation and discharge control of the liquid in the tank.

[0023] Furthermore, the water outlet end of the water outlet is connected to a water outlet pipe, and a third valve is installed on the water outlet pipe.

[0024] The third valve is used to control the switch of the water outlet.

[0025] Furthermore, at least three supporting legs are installed on the bottom of the tank body.

[0026] The support legs raise the tank to prevent water accumulation and the bottom of the tank from rusting or being corroded by other chemicals on the ground.

[0027] Compared with the prior art, the utility model has the following beneficial effects:

[0028] When the filter box and the inside of the tank need to be cleaned, open the lock, swing the left end of the flip cover to the right, and the filter box is moved out of the tank from the corresponding installation port along with the flip cover, so that the filter box and the tank are easy to clean and the filter box is easy to replace. The filtered liquid enters the bottom of the tank for sedimentation, the upper layer of liquid is discharged from the water outlet, and the precipitated impurities are discharged from the sewage outlet for further classification treatment, which improves the purification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the main structure of a wastewater treatment device in the production of neopentyl glycol;

[0030] Figure 2 for Figure 1 A schematic diagram of a top view structure;

[0031] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure along line AA;

[0032] Figure 4 for Figure 2 The schematic diagram of the cross-sectional structure along the BB line;

[0033] Figure 5 for Figure 1 Schematic diagram of the three-dimensional structure;

[0034] Figure 6 for Figure 5 A schematic diagram of a three-dimensional structure in which the first flap and the second flap are reduced after being opened;

[0035] Figure 7 for Figure 6 Schematic diagram of the explosion structure.

[0036] The names of the components in the figure are: 1. First valve; 2. Water inlet pipe; 3. Tank body; 4. First flap; 5. Hinge; 6. Second flap; 7. Support leg; 8. Drain pipe; 9. Second valve; 10. Third valve; 11. Water outlet pipe; 12. Lock; 13. First filter box; 14. Second filter box; 15. Drain port; 16. Water outlet; 17. Water inlet. DETAILED DESCRIPTION

[0037] The present invention is further described below through specific embodiments in conjunction with the accompanying drawings, but the present invention is not limited thereto. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

[0038] Example

[0039] This embodiment uses the following materials:

[0040] 1. Prepare some easy-to-clean and high-strength materials such as SUS340, SUS231 or SUS316L for making the tank body 3, the first flip cover 4, the second flip cover 6, the first filter box 13 and the second filter box 14;

[0041] 2. Prepare several sections of pipes such as cast iron pipes or stainless steel pipes with good corrosion resistance and strength, which are used as the water inlet pipe 2, the sewage pipe 8 and the water outlet pipe 11 respectively;

[0042] 3. Prepare three cast iron or stainless steel butterfly valves, which are used as the first valve 1, the second valve 9 and the third valve 10 respectively;

[0043] 4. Prepare more than 7 supporting legs made of high-strength materials such as gray cast iron or angle steel, at least three.

[0044] 5. A filter and some sealing strips.

[0045] The above materials are assembled as follows:

[0046] Step 1: Production

[0047] Make a tank body 3; Figure 1 and Figure 2 As shown, the tank body 3 is a cylindrical structure as a whole; Figure 1 As shown, the upper and lower ends of the tank body 3 are rounded, the bottom is a head structure, and the interior is hollow; Figure 4 As shown, a water inlet 17 is provided at the top of the tank body 3, a sewage outlet 15 is provided at the bottom, and a water outlet 16 is provided on the side wall of the lower half; Figure 4 and Figure 6 As shown, two openings are provided on the tank body 3. Figure 3 The semi-arc notch shown, such as Figure 4 As shown, the upper and lower surfaces of the semi-arc notch are connected to semi-circular steps.

[0048] Make the first flap 4 one; Figure 1 , Figure 3 and Figure 5 As shown, the first flip cover 4 is in a semi-arc structure, which is consistent with the size of the notch of the tank body 3. The upper and lower surfaces of the first flip cover 4 are connected to a semi-annular step, which is in a tongue-and-groove fit with the semi-annular step of the tank body 3.

[0049] Make a second flap 6; Figure 1 , Figure 3 and Figure 5 As shown, the second flip cover 6 and the first flip cover 4 have the same structure and are processed by the same method.

[0050] Make a first filter box 13; Figure 3 and Figure 4 As shown, the main body of the first filter box 13 is a barrel structure. Figure 3 As shown, a plurality of filter holes which are equally spaced and distributed in a circle are provided on the bottom surface of the first filter box 13, and the diameter of the filter holes is determined according to the filter material and the use requirements.

[0051] Make a second filter box 14; Figure 4 and Figure 7 As shown, the second filter box 14 and the first filter box 13 have the same structure and are processed using the same method.

[0052] Step 2: Assembly

[0053] like Figure 1 As shown, the tank body 3 is placed vertically, and the support legs 7 are installed on the bottom surface of the tank body 3. The support legs 7 are evenly spaced and distributed in a circle on the bottom surface of the tank body 3; Figure 4 As shown, one end of the water inlet pipe 2 is connected to the water inlet 17, and the first valve 1 is installed on the water inlet pipe 2; one end of the sewage pipe 8 is fixedly connected to the sewage outlet 15, and the second valve 9 is installed on the sewage pipe 8; one end of the water outlet pipe 11 is connected to the water outlet 16, and the third valve 10 is installed on the water outlet pipe 11; a filter is installed at the water outlet 16; Figure 6 As shown, the first filter box 13 is detachably mounted on the inner wall of the first flip cover 4, such as by fixing with bolts, and the second filter box 14 is detachably mounted on the inner wall of the second flip cover 6, and the first flip cover 4 and the second flip cover 6 are hinged to the tank body 3 on the right side of the installation port through the hinge 5; Figure 3 As shown, a lock buckle 12 is installed at the connection between the first flip cover 4 and the second flip cover 6 and the left side of the installation opening of the tank body 3; and a sealing strip is installed at the contact position between the first flip cover 4 and the second flip cover 6 and the tank body 3.

[0054] Instructions for use are as follows:

[0055] When in use, the water inlet pipe 2 is connected to the water outlet pipe of the main treatment device; quartz sand is placed in the first filter box 13, and activated carbon is placed in the second filter box 14, and the specific filter material added depends on the use requirements; the first valve 1 is adjusted to control the water inlet amount of the water inlet pipe 2, the sewage is filtered by quartz sand through the first filter box 13, and the sewage filtered by quartz sand is then treated by activated carbon adsorption through the second filter box 14, the clean water after activated carbon adsorption continues to drip toward the bottom of the tank body 3, and possible residues in the clean water continue to precipitate at the bottom of the tank body 3, when the water level reaches the water outlet 16, the third valve 10 is opened for discharge, and the sediment at the bottom of the tank body 3 can be discharged through the sewage pipe 8 by opening the second valve 9; when the filter material needs to be cleaned or replaced after long-term use, the lock 12 can be opened, and the first flip cover 4 and the second flip cover 6 can be opened along the hinge 5 for cleaning or replacement.

[0056] The above scheme realizes the rapid cleaning and replacement of the filter box or the filter material in the filter box, and is also convenient for the inspection and cleaning of the inside of the tank body 3, and the possible residues in the clean water are precipitated again through the bottom of the tank body 3, which can not only prevent the blockage of the water outlet 16 and extend the service life of the device, but also improve the water purification effect.

Claims

1. A device for treating wastewater in the production of neopentyl glycol, comprising a vertically arranged tank body (3), a water inlet (17) being arranged at the top of the tank body (3), and a plurality of filter boxes being arranged in an upper and lower distribution in the tank body (3), characterized in that: The tank body (3) is provided with mounting openings communicating with each other at positions corresponding to the filter boxes, and each mounting opening is hinged with a flip cover capable of opening and closing the mounting opening; The right end of the flip cover is hinged to the tank body (3), and a lock buckle (12) is provided on the flip cover for locking the installation opening with the tank body (3) after closing the installation opening; The filter box is installed on the inner side of the flip cover. When the flip cover is opened, the filter box moves out of the tank body (3) from the corresponding installation opening along with the flip cover. The bottom of the tank body (3) is a sealing head structure, and a sewage outlet (15) is provided at the bottom of the sealing head structure; A water outlet (16) is provided on the side wall of the tank body (3) below the filter box.

2. The device for treating wastewater in the production of neopentyl glycol according to claim 1, characterized in that: The flip cover and the tank body (3) are arranged in a tongue-and-groove arrangement.

3. The device for treating wastewater in the production of neopentyl glycol according to claim 2, characterized in that: Sealing strips are provided at the matching positions of the flip cover and the tank body (3).

4. The device for treating wastewater in the production of neopentyl glycol according to claim 3, characterized in that: The filter box comprises, from top to bottom, a first filter box (13) and a second filter box (14), the flip cover corresponding to the first filter box (13) is a first flip cover (4), and the flip cover corresponding to the second filter box (14) is a second flip cover (6).

5. The device for treating wastewater in the production of neopentyl glycol according to claim 4, characterized in that: The first filter box (13) and the second filter box (14) are both hingedly connected to the tank body (3) via hinges (5).

6. The device for treating wastewater in the production of neopentyl glycol according to claim 5, characterized in that: The water inlet end of the water inlet (17) is connected to a water inlet pipe (2), and a first valve (1) is installed on the water inlet pipe (2).

7. The device for treating wastewater in the production of neopentyl glycol according to claim 6, characterized in that: The liquid outlet end of the sewage outlet (15) is connected to a sewage pipe (8), and a second valve (9) is installed on the sewage pipe (8).

8. The device for treating wastewater in the production of neopentyl glycol according to claim 7, characterized in that: The water outlet end of the water outlet (16) is connected to a water outlet pipe (11), and a third valve (10) is installed on the water outlet pipe (11).

9. The device for treating wastewater in the production of neopentyl glycol according to claim 8, characterized in that: At least three supporting legs (7) are installed at the bottom of the tank body (3).

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