Safe dosing device for petrochemical wastewater regulating reservoir

Abstract

The invention relates to the technical field of wastewater regulation, in particular to a safe chemical feeding device for a petrochemical wastewater regulating reservoir, according to the scheme, chemicals in a chemical storage barrel are conveyed into wastewater in the regulating reservoir through a conveying pump device, and an arranged chemical feeding auxiliary assembly provides an auxiliary effect on chemical feeding work of the chemical feeding auxiliary assembly; if chemical adding is not carried out, a pipe opening in the bottom end of the discharging pipe body is shielded through the arranged activated carbon purification barrel, it is avoided that air pollution gas in the adjusting tank enters a chemical storage barrel from the discharging pipe body to pollute chemicals in the chemical storage barrel, and safe use of the chemicals is improved; when the dosing work is carried out, the chemical falling from the blanking pipe body is dispersed through the arranged diffusion cone, so that the distribution range of the chemical in the wastewater is enlarged, and a positive effect on improving the wastewater adjustment work is achieved; the positions of the diffusion cone and the activated carbon purification cylinder are regulated and controlled through cooperative use of a control motor and a connecting rotating shaft, and the diffusion cone and the activated carbon purification cylinder can be selectively used according to whether chemicals are added or not.

Description

Technical Field

[0001] This invention relates to the field of wastewater conditioning technology, and in particular to a safe dosing device for petrochemical wastewater conditioning tanks. Background Technology

[0002] Petrochemical wastewater refers to wastewater discharged from petrochemical plants. It is characterized by large volume, including not only production wastewater but also cooling water and other water uses. The composition of the wastewater is complex due to the wide variety of petrochemical products, complex reaction processes and unit operations, resulting in complex and variable wastewater properties. Treatment of this wastewater typically involves physicochemical treatment, biochemical treatment, and advanced treatment.

[0003] A patent document with publication number CN212864395U discloses an industrial wastewater dosing tank. The design includes "an automatic stirring and regulating tank, a dosing room, a trough-type inclined plate sedimentation tank, and a gravity-flow filtration tank. The automatic stirring and regulating tank has a first pipe on one side and an inlet at its top. The dosing room has a stirrer inside, an automatic dosing system on top of the stirrer, a second pipe on one side of the dosing room, an inclined tube backflow zone at the top of the trough-type inclined plate sedimentation tank, an overflow port on one side of the top of the inclined tube backflow zone, a guide pipe on one side of the overflow port, and an outlet at the bottom of the gravity-flow filtration tank." The specification also states that "water enters the automatic stirring and regulating tank through the inlet. A pH meter and a turbidity meter in the automatic stirring and regulating tank measure and react to determine the acidity / alkalinity and turbidity of the solution in the water. The automatic dosing system adds different reagents based on the results of the pH meter and turbidity meter, and the stirrer mixes the water and reagents evenly."

[0004] It is understood that in the above-mentioned scheme, when adding the required reagent to the equalization tank, the automatic dosing system introduces the reagent into the dosing room, and then mixes it with the wastewater. In the prior art, the addition of reagents is generally carried out by pumping the reagent from the storage device into the equalization tank. That is, the input pipe is set at the top of the equalization tank, and the reagent enters the wastewater in the tank from the input pipe. During this process, there is a lack of a suitable protective component at the bottom of the input pipe of the dosing system. That is, polluting gases generated by the wastewater during equalization may enter the reagent storage device from the input pipe, causing pollution to the reagent and affecting the safe use of the reagent.

[0005] Therefore, this invention proposes a safe dosing device for petrochemical wastewater regulating ponds to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a safe dosing device for petrochemical wastewater regulating tanks to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a safe dosing device for a petrochemical wastewater regulating tank, comprising a reagent storage cylinder and a lid installed on the top of the reagent storage cylinder, and a delivery pump device installed on the top of the reagent storage cylinder, the delivery pump device being connected to a delivery pipe, and the delivery pipe being connected to the discharge pipe body via a flange.

[0008] The drug storage container is placed on top of the equalization tank;

[0009] An installation port is also provided at the top of the equalization tank, and a dosing auxiliary component is connected to the installation port.

[0010] The dosing auxiliary component includes a sealing cap that seals the installation cavity at the top of the equalization tank, and the sealing cap is fixed by screws.

[0011] The discharge pipe extends through the sealing cover, and the bottom end of the discharge pipe extends into the inner cavity of the regulating tank.

[0012] Preferably, the dosing auxiliary component further includes a control motor fixedly mounted on the top of the sealing cover;

[0013] The control motor is connected to the connecting shaft, which is located inside the regulating tank, and a connecting plate is fixedly installed at the bottom end of the connecting shaft.

[0014] The connecting plate is fixedly connected to the loading plate by bolts.

[0015] Preferably, a first bearing rod is fixedly provided on one side of the loading disc, and the first bearing rod is horizontally positioned;

[0016] A diffusion cone is fixedly installed at one end of the first bearing rod.

[0017] Preferably, the tip of the diffusion cone is vertically upward, and the position of the diffusion cone corresponds to the bottom end of the feed pipe, with the tip of the diffusion cone located on the axis of the feed pipe.

[0018] Preferably, diversion auxiliary grooves are provided at equal intervals on the cone surface of the diffusion cone;

[0019] The diversion auxiliary tank is set at an angle.

[0020] Preferably, a second bearing rod is fixedly installed on the other side of the loading disc, and the second bearing rod is also horizontally installed;

[0021] A loading basket is fixedly installed at one end of the second bearing rod.

[0022] Preferably, the bottom of the loading basket is sealed, and the top is open;

[0023] Limiting slots are symmetrically provided at the top of the sealing part at the bottom of the loading basket.

[0024] Preferably, the loading basket contains an activated carbon purification cartridge;

[0025] A support base is fixedly installed at the bottom of the activated carbon purification cylinder, and a support top is fixedly installed at the top of the activated carbon purification cylinder.

[0026] Preferably, a limiting card body that is adapted to and engages with the limiting card slot is symmetrically fixed at the bottom end of the support base.

[0027] Preferably, a sealing ring is fixedly installed on the top of the support base;

[0028] This sealing ring is used to seal the bottom end of the feed pipe.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] The present invention discloses a safe dosing device for a petrochemical wastewater equalization tank, comprising a reagent storage cylinder and a lid on top of the storage cylinder. A delivery pump is also installed on top of the storage cylinder, connected to a delivery pipe, which is connected to a discharge pipe via a flange. The storage cylinder is placed on top of the equalization tank. An installation cavity is also provided on top of the equalization tank, and a dosing auxiliary component is connected thereto. This component includes a sealing cap that seals the installation cavity on top of the equalization tank and is secured with screws. The discharge pipe extends through the sealing cap, with its bottom end extending into the inner cavity of the equalization tank.

[0031] For the dosing operation in the equalization tank, this solution uses a transfer pump to transport the chemicals from the storage tank to the wastewater in the equalization tank, with the addition of auxiliary dosing components to assist in the dosing process.

[0032] If no chemical addition is performed, the bottom opening of the discharge pipe is blocked by an activated carbon purification cylinder placed in the loading basket. This process prevents polluting gases from the regulating tank from entering the chemical storage tank through the discharge pipe and contaminating the chemicals, thus improving the safe use of the chemicals. Specifically, the connecting shaft is rotated by a control motor until the loading basket is moved to a position directly below the bottom opening of the discharge pipe, where the activated carbon purification cylinder in the loading basket blocks the opening of the discharge pipe. A sealing ring is installed on the top of the support base, which contacts the opening of the discharge pipe to seal it.

[0033] Based on this, during the dosing process, this solution uses a diffusion cone to disperse the agent falling from the feed pipe, increasing the distribution range of the agent in the wastewater. Specifically, the agent falling from the feed pipe lands on the tip of the diffusion cone and then continues to fall along the cone's surface, providing a dispersion effect. Additionally, this solution also features equally spaced diversion auxiliary channels on the diffusion cone's surface; these channels act as guides for the agent falling onto the diffusion cone, further enhancing the uniformity of the agent's dispersion.

[0034] It plays a positive role in improving wastewater treatment; the diffusion cone and activated carbon purification cylinder are positioned by controlling the motor and connecting shaft, and can be selected for use depending on whether chemicals are added, making it highly flexible in operation. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of the petrochemical wastewater equalization tank of the present invention;

[0036] Figure 2 for Figure 1 Enlarged schematic diagram of the structural connection at point A;

[0037] Figure 3 This is a top view of the structure of the dosing aid component of the present invention;

[0038] Figure 4 for Figure 3 Enlarged schematic diagram of the structural connection at point B;

[0039] Figure 5 This is a schematic diagram of the bottom connection of the drug delivery auxiliary component structure of the present invention;

[0040] Figure 6 This is an exploded top view of the connection between the loading basket and the activated carbon purification cylinder structure of the present invention;

[0041] Figure 7 for Figure 6 Enlarged schematic diagram of the structural connection at point C;

[0042] Figure 8 This is an exploded bottom view of the connection between the loading basket and the activated carbon purification cylinder structure of the present invention;

[0043] Figure 9 for Figure 8 Enlarged schematic diagram of the structural connection at point D.

[0044] In the diagram: 1. Regulating tank; 2. Chemical storage cylinder; 21. Cylinder lid; 3. Conveying pump device; 4. Conveying pipe; 5. Discharge pipe body; 601. Sealing cover; 602. Control motor; 603. Connecting shaft; 604. Connecting disc; 701. Loading disc; 702. First bearing rod; 703. Diffusion cone; 704. Diversion auxiliary tank; 801. Second bearing rod; 802. Loading basket; 803. Limiting slot; 804. Activated carbon purification cylinder; 805. Support base; 806. Limiting body; 807. Support top seat; 808. Sealing ring. Detailed Implementation

[0045] The technical solutions in the embodiments of the present invention will be clearly and completely described below. All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present invention.

[0046] Example 1: Please refer to Figures 1-9 A safety dosing device for a petrochemical wastewater regulating tank includes a chemical storage tank 2 and a tank cover 21 installed on top of the chemical storage tank 2. A delivery pump device 3 is also installed on top of the chemical storage tank 2. The delivery pump device 3 is connected to a delivery pipe 4, and the delivery pipe 4 is connected to a discharge pipe 5 through a flange.

[0047] The drug storage cylinder 2 is placed on top of the equalization tank 1; an installation cavity is also provided on top of the equalization tank 1, and a dosing auxiliary component is connected to the installation cavity; the dosing auxiliary component includes a sealing cover 601, which seals the installation cavity on top of the equalization tank 1 and is fixed by screws; the discharge pipe 5 passes through the sealing cover 601, and the bottom end of the discharge pipe 5 extends into the inner cavity of the equalization tank 1.

[0048] According to the appendix Figure 1 -Appendix Figure 5 As shown, for the dosing operation of equalization tank 1, this scheme uses a transfer pump device 3 to transport the chemicals in the chemical storage tank 2 to the wastewater in equalization tank 1, and the dosing auxiliary components provide assistance for the dosing operation.

[0049] If no dosing is performed, the bottom opening of the feed pipe 5 is blocked by the activated carbon purification cylinder 804 set in the loading basket 802. During this process, it is prevented that polluting gases in the equalization tank 1 enter the chemical storage cylinder 2 from the feed pipe 5 and cause pollution to the chemicals therein, thus improving the safe use of the chemicals. In addition, when dosing is performed, this scheme disperses the chemicals falling from the feed pipe 5 through the diffusion cone 703, thereby increasing the distribution range of the chemicals in the wastewater and playing a positive role in improving the wastewater equalization work.

[0050] The diffusion cone 703 and activated carbon purification cylinder 804 are positioned by the control motor 602 and the connecting shaft 603, and can be selected for use depending on whether chemicals are added, thus providing high operational flexibility.

[0051] From the appendix Figure 3 -Appendix Figure 5 As shown, the dosing auxiliary component also includes a control motor 602 fixedly mounted on the top of the sealing cover 601; the control motor 602 is connected to a connecting shaft 603, which is located in the inner cavity of the regulating tank 1, and a connecting plate 604 is fixedly mounted at the bottom end of the connecting shaft 603; the connecting plate 604 is fixedly connected to the loading plate 701 by bolts; a first bearing rod 702 is fixedly mounted on one side of the loading plate 701, and the first bearing rod 702 is horizontally positioned; a diffusion cone 703 is fixedly mounted at one end of the first bearing rod 702.

[0052] During the dosing process, the chemicals drawn from the storage tank 2 enter the equalization tank 1 through the discharge pipe 5. At this time, the control motor 602 drives the connecting shaft 603 to rotate, which in turn drives the connecting plate 604 and the loading plate 701 at the bottom of the connecting shaft 603 to rotate. This causes the diffusion cone 703 to move to a position directly below the bottom opening of the discharge pipe 5. The tip of the diffusion cone 703 is vertically upward, and the position of the diffusion cone 703 corresponds to the bottom opening of the discharge pipe 5. The tip of the diffusion cone 703 is on the axis of the discharge pipe 5. The chemicals falling from the discharge pipe 5 land on the top of the tip of the diffusion cone 703, and then fall along the cone surface of the diffusion cone 703, thereby increasing the range of the chemicals falling into the wastewater.

[0053] In this design, diversion auxiliary channels 704 are equidistantly arranged on the cone surface of the diffusion cone 703. The diversion auxiliary channels 704 are inclined. The purpose of setting the diversion auxiliary channels 704 on the cone surface of the diffusion cone 703 is to provide a guiding effect for the agent falling on the diffusion cone 703 and to provide a uniform effect for the dispersion of the agent. That is, the agent enters from the slot of the diversion auxiliary channel 704 at the cone tip of the diffusion cone 703, and then flows along each diversion auxiliary channel 704 until it falls off.

[0054] Combined with the appendix Figure 6 -Appendix Figure 9 As shown, after the dosing operation is completed, the inlet of the feed pipe 5 needs to be shielded to prevent the polluting gas from the equalization tank 1 from contaminating the agent.

[0055] Therefore, this solution also includes a second bearing rod 801 fixedly installed on the other side of the loading disc 701, which is also horizontally positioned; a loading basket 802 is fixedly installed at one end of the second bearing rod 801; the bottom of the loading basket 802 is sealed, and its top is open; a limiting groove 803 is symmetrically provided at the top of the bottom sealing part of the loading basket 802; an activated carbon purification cylinder 804 is placed in the loading basket 802; a support base 805 is fixedly installed at the bottom of the activated carbon purification cylinder 804, and a support top seat 807 is fixedly installed at the top of the activated carbon purification cylinder 804; a limiting clip 806 adapted to and engaging with the limiting groove 803 is symmetrically fixedly installed at the bottom of the support base 805; a sealing ring 808 is fixedly installed at the top of the support top seat 807; the sealing ring 808 is used to seal the bottom opening of the discharge pipe 5.

[0056] That is, when the dosing stops, the connecting shaft 603 is rotated by the control motor 602 until the loading basket 802 is moved to the position directly below the bottom opening of the discharge pipe 5. The activated carbon purification cylinder 804 set in the loading basket 802 blocks the opening of the discharge pipe 5.

[0057] A support top seat 807 is provided on the top of the activated carbon purification cylinder 804, and a sealing ring 808 is provided on the top of the support top seat 807. The sealing ring 808 contacts the opening of the discharge pipe 5 to seal the opening of the discharge pipe 5.

[0058] From the appendix Figure 7 and appendix Figure 9 As shown, the activated carbon purification cylinder 804 in this solution is placed in the loading basket 802. The activated carbon purification cylinder 804 is easy to disassemble. A support base 805 is provided at the bottom of the activated carbon purification cylinder 804, and a limiting clip 806 provided at the bottom of the support base 805 engages with the limiting clip groove 803 on the inner bottom of the loading basket 802. This provides a positioning function for the activated carbon purification cylinder 804. When it is necessary to remove the activated carbon purification cylinder 804 later, simply lift the activated carbon purification cylinder 804, first separating the limiting clip 806 at the bottom of the support base 805 from the limiting clip groove 803, and then separating the activated carbon purification cylinder 804 from the loading basket 802. Similarly, for the installation of the activated carbon purification cylinder 804, insert the activated carbon purification cylinder 804 into the loading basket 802, and ensure that the limiting clip 806 at the bottom of the support base 805 engages with the limiting clip groove 803.

[0059] After the sealing ring 808 at the top of the support seat 807 contacts the opening of the feed pipe 5 to block the flow, the residual agent in the feed pipe 5 can enter the inner cavity of the activated carbon purification cylinder 804 to avoid waste. The activated carbon purification cylinder 804 can also provide a purification effect for the incoming polluting gas to prevent the polluting gas from contaminating the agent.

[0060] Combined with the appendix Figure 3 and appendix Figure 5 As shown, the connecting plate 604 and the loading plate 701 are fixed together by bolts. When the diffusion cone 703 and the activated carbon purification cylinder 804 need to be replaced later, the fixing of the sealing cover 601 is removed, and then the fixing of the connecting plate 604 and the loading plate 701 is released. The disassembly of the diffusion cone 703 and the loading basket 802 can then be completed.

[0061] Finally, when it is necessary to add medicine again, the motor 602 is used to control the rotation of the loading disc 701 until the diffusion cone 703 at one end of the first bearing rod 702 reaches the position directly below the feed tube 5.

[0062] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A safety dosing device for a petrochemical wastewater regulating tank, comprising a reagent storage tank (2) and a tank cover (21) installed on the top of the reagent storage tank (2). A delivery pump device (3) is also installed on the top of the reagent storage tank (2). The delivery pump device (3) is connected to a delivery pipe (4), and the delivery pipe (4) is connected to a discharge pipe body (5) through a flange. The drug storage cylinder (2) is placed on top of the regulating tank (1); Its features are: An installation cavity is also provided at the top of the equalization tank (1), and a dosing auxiliary component is connected to the installation cavity; The dosing auxiliary component includes a plug (601) that plugs the mounting cavity at the top of the regulating tank (1) and is fixed by screws; The discharge pipe (5) passes through the sealing cover (601), and the bottom end of the discharge pipe (5) extends into the inner cavity of the regulating tank (1).

2. The safe dosing device for petrochemical wastewater regulating tanks according to claim 1, characterized in that: The dosing auxiliary component also includes a control motor (602) fixedly installed on the top of the sealing cover (601). The control motor (602) is connected to the connecting shaft (603), which is located in the inner cavity of the regulating tank (1), and a connecting plate (604) is fixedly installed at the bottom end of the connecting shaft (603). The connecting plate (604) is fixedly connected to the loading plate (701) by bolts.

3. The safe dosing device for petrochemical wastewater regulating tank according to claim 2, characterized in that: A first bearing rod (702) is fixedly installed on one side of the loading disc (701), and the first bearing rod (702) is horizontally set; A diffusion cone (703) is fixedly installed at one end of the first bearing rod (702).

4. The safe dosing device for petrochemical wastewater regulating tanks according to claim 3, characterized in that: The tip of the diffusion cone (703) is vertically upward, and the position of the diffusion cone (703) corresponds to the bottom end of the feed tube (5). The tip of the diffusion cone (703) is on the axis of the feed tube (5).

5. The safe dosing device for petrochemical wastewater regulating tanks according to claim 4, characterized in that: Diversion auxiliary channels (704) are provided at equal intervals on the cone surface of the diffusion cone (703). The diversion auxiliary tank (704) is tilted.

6. The safe dosing device for petrochemical wastewater regulating tank according to claim 3, characterized in that: A second bearing rod (801) is fixedly installed on the other side of the loading disc (701), and the second bearing rod (801) is also horizontally installed; A loading basket (802) is fixedly installed at one end of the second support rod (801).

7. The safe dosing device for petrochemical wastewater regulating tank according to claim 6, characterized in that: The bottom of the loading basket (802) is sealed, and the top is open; A limit slot (803) is symmetrically provided on the top of the bottom sealing part of the loading basket (802).

8. The safe dosing device for petrochemical wastewater regulating tank according to claim 7, characterized in that: The loading basket (802) contains an activated carbon purification cylinder (804); A support base (805) is fixedly installed at the bottom of the activated carbon purification cylinder (804), and a support top seat (807) is fixedly installed at the top of the activated carbon purification cylinder (804).

9. The safe dosing device for petrochemical wastewater regulating tank according to claim 8, characterized in that: A limiting card body (806) that is adapted to and engages with the limiting card slot (803) is symmetrically fixed at the bottom end of the support base (805).

10. The safe dosing device for petrochemical wastewater regulating tank according to claim 8, characterized in that: A sealing ring (808) is fixedly installed on the top of the support top seat (807); The sealing ring (808) is used to seal the bottom end of the feed pipe (5).

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