Concentrated sulfuric acid dosing device

Abstract

The utility model relates to the technical field of dosing devices, and discloses a concentrated sulfuric acid dosing device which comprises a base, an intermediate tank is fixedly connected to the top of the base, a dosing mechanism is arranged on the surface of the intermediate tank, a protection mechanism is arranged on the top of the base, and the dosing mechanism comprises a medicine outlet. The medicine outlet is fixedly connected to the bottom of the right side of the intermediate tank, the rear end of the top of the intermediate tank is fixedly connected with a first connecting pipe, the top of the first connecting pipe is sleeved with a slipknot, a second connecting pipe is inserted into the slipknot, and the right end of the top of the second connecting pipe is fixedly connected with a medicine suction pipe; the intermediate tank can be conveniently treated and maintained by arranging the chemical adding mechanism, the probability of chemical leakage of the tank body can be greatly reduced, the connection between the storage tank and the chemical suction pipe can be easily cut off during maintenance after chemical stopping, very troublesome concentrated sulfuric acid does not need to be emptied for maintenance any more, and only a small part of concentrated sulfuric acid in a pipeline needs to be properly treated. And the safety and efficiency of device operation and maintenance are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dosing devices, in particular to a concentrated sulfuric acid dosing device. Background Art

[0002] The concentrated sulfuric acid dosed during the water treatment process is a highly corrosive chemical product. To save costs, the method of dosing with carbon steel pipes is generally adopted. However, in the actual process, due to environmental humidity, equipment shutdown, product problems, etc., it is very easy to cause damage to carbon steel pipes, dosing pumps, etc. and face maintenance. Since general dosing pumps suck medicine from the bottom of the concentrated sulfuric acid storage tank, if this process section from the tank bottom to the pump needs to be repaired or replaced, it is inevitable to empty the concentrated sulfuric acid, and its harm to people and the environment is very serious. Repairing such a device is very dangerous and troublesome. Moreover, if there is still a lot of medicine in the tank, it is even more difficult to temporarily store it elsewhere.

[0003] According to a SKL - concentrated sulfuric acid high - efficiency dosing device disclosed on the patent network (the authorization announcement number is: CN212701839U), it is described that "the utility model discloses a SKL - concentrated sulfuric acid high - efficiency dosing device, including a device body, a dosing mechanism and a reflux mechanism; an inlet pipe is provided on the side wall of the device body, and an overflow pipe is provided at the bottom. One end of the inlet pipe inside the device body is connected to the inside of the dosing mechanism; the dosing mechanism includes a dosing hopper, a dosing hopper reflux pipe connected to the reflux mechanism is provided on the side wall of the dosing hopper, and a dosing pipe extending downward to the outside of the bottom of the device body is provided at the bottom; the reflux mechanism includes a reflux hopper; a reflux pipe extending downward to the outside of the bottom of the device body is provided at the bottom of the reflux hopper. The utility model can effectively prevent the damage of the inlet pump or sulfuric acid leakage caused by the blockage of the dosing pipe, resulting in safety accidents; when the dosing requirement is very low and the inlet amount of the inlet pipe is too large, the excess sulfuric acid can reflux to ensure the realization of the low - dosing requirement; and it can effectively block the backflow of sulfuric acid doped with waste water into the inlet pipe and inlet pump, causing corrosion and damage to the inlet pipe and inlet pump."

[0004] According to the above content, the applicant believes that the following defects exist:

[0005] The SKL - concentrated sulfuric acid high - efficiency dosing device includes a device body, a dosing mechanism and a reflux mechanism; an inlet pipe is provided on the side wall of the device body, and an overflow pipe is provided at the bottom. Since general dosing pumps suck medicine from the bottom of the concentrated sulfuric acid storage tank, if this process section from the tank bottom to the pump needs to be repaired or replaced, it is inevitable to empty the concentrated sulfuric acid, and its harm to people and the environment is very serious. Repairing such a device is very dangerous and troublesome. Moreover, if there is still a lot of medicine in the tank, it is even more difficult to temporarily store it elsewhere, which will greatly increase the working intensity and seriously cause personal danger. Content of the Utility Model

[0006] The purpose of the utility model is to provide a concentrated sulfuric acid dosing device to solve the problems raised in the above - mentioned background art.

[0007] To achieve the above object, the present utility model provides the following technical solution: a concentrated sulfuric acid dosing device, including a base, a middle tank is fixedly connected to the top of the base, a dosing mechanism is arranged on the surface of the middle tank, and a protection mechanism is arranged on the top of the base.

[0008] Preferably, the dosing mechanism includes a medicine outlet, the medicine outlet is fixedly connected to the bottom right side of the middle tank, a first connecting pipe is fixedly connected to the rear end of the top of the middle tank, a quick coupling is sleeved on the top of the first connecting pipe, a second connecting pipe is inserted into the quick coupling, a medicine suction pipe is fixedly connected to the right end of the top of the second connecting pipe, a connecting air pipe is fixedly connected to the top of the medicine suction pipe, a cut-off valve is arranged on the surface of the connecting air pipe, a suction pipe is fixedly connected to the front end of the top of the middle tank, a one-way valve I is arranged at the bottom of the suction pipe, a suction valve is arranged on the surface of the suction pipe, a liquid level inspection pipe is fixedly connected to the top of the front of the middle tank, a one-way valve II is arranged at the bottom of the liquid level inspection pipe, and a liquid level inspection valve is arranged on the bottom surface of the liquid level inspection pipe. By setting the dosing mechanism, the middle tank can be conveniently processed and maintained, the probability of the tank body itself leaking medicine can be greatly reduced, the connection between the storage tank and the medicine suction pipe can be easily cut off during drug withdrawal and maintenance, and there is no need to empty the very troublesome concentrated sulfuric acid for maintenance. Only a small amount of concentrated sulfuric acid in the pipeline needs to be properly treated. The safety and efficiency of the device operation and maintenance are improved.

[0009] Preferably, the medicine suction pipe is fixedly connected to one end of the second connecting pipe away from the quick coupling, the suction valve is arranged on the top of the one-way valve I, and the liquid level inspection valve is arranged on the bottom of the one-way valve II.

[0010] Preferably, the protection mechanism includes mounting holes, the mounting holes are opened around the top of the base, a load-bearing base is arranged at the bottom of the base, mounting bolts are arranged inside the mounting holes, an anti-corrosion protection shell is sleeved on the surface of the middle tank, a connecting block is fixedly connected to the surface of the anti-corrosion protection shell, a connecting clamping block is fixedly connected to the right side of the connecting block, and a clamping groove is opened on the right surface of the connecting clamping block. The middle tank is fixed in place through the mounting holes, the load-bearing base, and the mounting bolts to prevent the middle tank from tipping and being damaged. At the same time, an anti-corrosion protection shell is arranged on the surface of the middle tank, which can effectively ensure the integrity of the middle tank and prevent the middle tank from being corroded and damaged, improving the service life and usage period of the device.

[0011] Preferably, the base and the load-bearing base are connected together through the mounting holes and the mounting bolts, and there are three groups of the anti-corrosion protection shell, the connecting block, the connecting clamping block, and the clamping groove.

[0012] Compared with the prior art, the present utility model provides a concentrated sulfuric acid dosing device, which has the following beneficial effects:

[0013] 1. The concentrated sulfuric acid dosing device is provided with a dosing mechanism. By setting up the dosing mechanism, the intermediate tank can be conveniently processed and maintained, which can greatly reduce the probability of drug leakage from the tank body itself. When the device stops for maintenance, the connection between the storage tank and the medicine suction pipe can be easily cut off, and there is no need to empty the very troublesome concentrated sulfuric acid for maintenance. Only a small amount of concentrated sulfuric acid in the pipeline needs to be properly treated. This improves the safety and efficiency of the device operation and maintenance.

[0014] 2. The concentrated sulfuric acid dosing device is provided with a protection mechanism. The intermediate tank is fixed in place through the mounting holes, load-bearing base, and mounting bolts to prevent the intermediate tank from tipping and being damaged. At the same time, an anti-corrosion protection shell is provided on the surface of the intermediate tank, which can effectively ensure the integrity of the intermediate tank and prevent the intermediate tank from being corroded and damaged, improving the service life and usage cycle of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the dosing mechanism of the structure of the present invention;

[0018] Figure 3 It is a schematic diagram of the separated view of the dosing mechanism of the structure of the present invention;

[0019] Figure 4 It is a schematic diagram of the medicine suction pipe of the structure of the present invention;

[0020] Figure 5 It is a schematic diagram of the protection mechanism of the structure of the present invention;

[0021] Figure 6 It is a schematic diagram of the tank body size parameters of the structure of the present invention;

[0022] Figure 7 It is a schematic diagram of the size parameters of the structure of the present invention.

[0023] In the figure: 1. Base; 2. Intermediate tank; 3. Chemical dosing mechanism; 31. Chemical outlet; 32. First connecting pipe; 33. Loose joint; 34. Second connecting pipe; 35. Medicine suction pipe; 36. Air connecting pipe; 37. Cut-off valve; 38. Air extraction pipe; 39. Check valve I; 301. Air extraction valve; 302. Liquid level inspection pipe; 303. Check valve II; 304. Liquid level inspection valve; 4. Protection mechanism; 41. Mounting hole; 42. Load-bearing base; 43. Mounting bolt; 44. Anticorrosion protection shell; 45. Connecting block; 46. Connecting clamping block; 47. Clamping groove. Specific implementation mode

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] In the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation" and other terms shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0026] The present invention provides the following technical solutions:

[0027] Embodiment 1

[0028] Please refer to Figures 1-4 , a concentrated sulfuric acid dosing device includes a base 1, an intermediate tank 2 fixedly connected to the top of the base 1, a chemical dosing mechanism 3 arranged on the surface of the intermediate tank 2, and a protection mechanism 4 arranged on the top of the base 1;

[0029] The chemical addition mechanism 3 includes a medicine outlet 31, and the medicine outlet 31 is fixedly connected to the right bottom of the intermediate tank 2. A first connecting pipe 32 is fixedly connected to the rear end of the top of the intermediate tank 2. A quick coupling 33 is sleeved on the top of the first connecting pipe 32. A second connecting pipe 34 is inserted into the quick coupling 33. The right end of the top of the second connecting pipe 34 is fixedly connected to a medicine suction pipe 35. The top of the medicine suction pipe 35 is fixedly connected to a connecting air pipe 36. A cut-off valve 37 is arranged on the surface of the connecting air pipe 36. A suction pipe 38 is fixedly connected to the front end of the top of the intermediate tank 2. A one-way valve 39 is arranged at the bottom of the suction pipe 38. An air extraction valve 301 is arranged on the surface of the suction pipe 38. A liquid level inspection pipe 302 is fixedly connected to the top of the front surface of the intermediate tank 2. A one-way valve 303 is arranged at the bottom of the liquid level inspection pipe 302. A liquid level inspection valve 304 is arranged on the bottom surface of the liquid level inspection pipe 302. By arranging the chemical addition mechanism 3, the intermediate tank 2 can be conveniently processed and maintained, the probability of medicine leakage from the tank body itself can be greatly reduced, the connection between the storage tank and the medicine suction pipe 35 can be easily cut off during shutdown and maintenance, and there is no need to empty the very troublesome concentrated sulfuric acid for maintenance. Only a small amount of concentrated sulfuric acid in the pipeline needs to be properly treated. The safety and efficiency of the device operation and maintenance are improved;

[0030] The medicine suction pipe 35 is fixedly connected to one end of the second connecting pipe 34 away from the quick coupling 33. The air extraction valve 301 is arranged on the top of the one-way valve 39. The liquid level inspection valve 304 is arranged on the bottom of the one-way valve 303.

[0031] Embodiment 2

[0032] Please refer to Figures 1-7 On the basis of Embodiment 1, a protection mechanism 4 is further obtained, including a mounting hole 41. The mounting hole 41 is opened around the top of the base 1. A load-bearing base 42 is arranged at the bottom of the base 1. Mounting bolts 43 are arranged inside the mounting hole 41. An anti-corrosion protection shell 44 is sleeved on the surface of the intermediate tank 2. A connecting block 45 is fixedly connected to the surface of the anti-corrosion protection shell 44. A connecting clamping block 46 is fixedly connected to the right side of the connecting block 45. A clamping groove 47 is opened on the right surface of the connecting clamping block 46. The intermediate tank 2 is fixed in place through the mounting hole 41, the load-bearing base 42, and the mounting bolts 43 to prevent the intermediate tank 2 from tipping over and being damaged. At the same time, an anti-corrosion protection shell 44 is arranged on the surface of the intermediate tank 2, which can effectively ensure the integrity of the intermediate tank 2 and prevent the intermediate tank 2 from being corroded and damaged, improving the service life and usage cycle of the device;

[0033] The base 1 and the load-bearing base 42 are connected together through the mounting hole 41 and the mounting bolts 43. There are three groups of the anti-corrosion protection shell 44, the connecting block 45, the connecting clamping block 46, and the clamping groove 47.

[0034] During the actual operation process, when this device is in use, place the intermediate tank 2 in the required position, fix the intermediate tank 2 through the mounting holes 41, the load-bearing base 42 and the mounting bolts 43, connect the anti-corrosion protective shell 44 through the connecting blocks 46 and the clamping grooves 47, then place the second connecting pipe 34 inside the union 33 and connect it to the first connecting pipe 32, place the medicine suction pipe 35 in the sulfuric acid storage tank, start the device for medicine addition. After the main tank is filled with medicine, ensure ventilation, ensure that the intermediate tank 2, the union 33, the first connecting pipe 32 and the second connecting pipe 34 are well connected, connect the medicine outlet 31 and the corresponding pipeline, close the block valve 37, open the air extraction valve 301 at the air extraction pipe 38, use a manual air pump or an electric air extraction pump to extract vacuum, stop extracting air after a while, observe whether sulfuric acid flows out at the liquid level check valve 304. If it flows out, close the valve; if not, continue to work. When the device needs to be overhauled, close the valve at the medicine outlet 31, open the block valve 37, disconnect the sulfuric acid storage tank from the external pipeline, and the overhaul process only needs to properly handle the small amount of sulfuric acid in the intermediate tank 2.

[0035] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

Claims

1. A concentrated sulfuric acid dosing device, comprising a base (1), characterized in that: A middle tank (2) is fixedly connected to the top of the base (1). A chemical dosing mechanism (3) is arranged on the surface of the middle tank (2), and a protection mechanism (4) is arranged on the top of the base (1). The chemical dosing mechanism (3) includes a medicine outlet (31) fixedly connected to the bottom right of the middle tank (2). A first connecting pipe (32) is fixedly connected to the rear end of the top of the middle tank (2). A quick coupling (33) is sleeved on the top of the first connecting pipe (32). A second connecting pipe (34) is inserted into the quick coupling (33). A medicine suction pipe (35) is fixedly connected to the right end of the top of the second connecting pipe (34). A connecting air pipe (36) is fixedly connected to the top of the medicine suction pipe (35). A cut-off valve (37) is arranged on the surface of the connecting air pipe (36). A suction pipe (38) is fixedly connected to the front end of the top of the middle tank (2). A one-way valve I (39) is arranged at the bottom of the suction pipe (38). A suction valve (301) is arranged on the surface of the suction pipe (38). A liquid level inspection pipe (302) is fixedly connected to the top of the front of the middle tank (2). A one-way valve II (303) is arranged at the bottom of the liquid level inspection pipe (302). A liquid level inspection valve (304) is arranged on the bottom surface of the liquid level inspection pipe (302).

2. The sulfuric acid dosing device according to claim 1, characterized in that: The medicine suction pipe (35) is fixedly connected to one end of the second connecting pipe (34) away from the quick coupling (33). The suction valve (301) is arranged on the top of the one-way valve I (39). The liquid level inspection valve (304) is arranged on the bottom of the one-way valve II (303).

3. The sulfuric acid dosing device according to claim 1, characterized in that: The protection mechanism (4) includes mounting holes (41) opened around the top of the base (1). A load-bearing base (42) is arranged at the bottom of the base (1). Mounting bolts (43) are arranged inside the mounting holes (41). An anti-corrosion protection shell (44) is sleeved on the surface of the middle tank (2). A connecting block (45) is fixedly connected to the surface of the anti-corrosion protection shell (44). A connecting clamping block (46) is fixedly connected to the right side of the connecting block (45). A clamping groove (47) is opened on the right surface of the connecting clamping block (46).

4. The sulfuric acid dosing device according to claim 3, characterized in that: The base (1) and the load-bearing base (42) are connected together through the mounting holes (41) and the mounting bolts (43). There are three groups of the anti-corrosion protection shell (44), the connecting block (45), the connecting clamping block (46) and the clamping groove (47).

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