Automatic dosing device for metering pump for sewage treatment

Abstract

The present application relates to sewage treatment technical field, and disclose a kind of metering pump automatic dosing device for sewage treatment, comprising: transmission part, transmission part is located at the top end outside dosing tank for transmitting dissolved reagent, transmission part includes the transmission pipe of linkage mixing tank and dosing tank, transmission pipe is closely arranged with dosing tank on one side outside and is provided with driving element, transmission pipe is located below driving element in the position of inside and is provided with the screening element for screening after dissolving reagent, screening element can slide in transmission pipe internal cavity.The present application is provided with screening element, motor rotation drives the rotation of fixed rod inside fixed plate, fixed rod rotation drives screw gear rotation, screw gear rotation drives the rotation of gear ring meshing connection, gear ring slides in the inside of positioning ring groove, gear ring drives screening element to rotate under the restriction of positioning ring groove, increase the opportunity of material and screen contact, accelerate the screening process, so that material is effectively separated on screen surface.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sewage treatment, in particular to an automatic dosing device of a metering pump for sewage treatment. BACKGROUND

[0002] In the process of sewage treatment, metering pumps are used to suck chemical agents from the medicine tank and pour them into the sewage pool. The agents react with some substances in the sewage, thereby removing some pollutants. The metering pump dosing device has been widely used in water treatment, chemical industry, environmental protection and other fields. For example, in municipal water supply treatment, it is used to add disinfectants and pH regulators; in sewage treatment, it is used to add coagulants, flocculants and disinfectants, etc. These devices can accurately control the dosage of the agents, improve the treatment efficiency and reduce the operating cost. Compared with the screw pump, the metering pump is more accurate in the dosing process, and can better control the dosage of the agents.

[0003] After artificial dosing, the agents are placed in the dosing tank. The agents added in the sewage treatment in the prior art need to be dissolved in water when used. If the added agent solution is not completely dissolved, the undissolved part may sink to the bottom during the static process before being added to the sewage. This is because the undissolved agent is usually a solid particle, and its density is greater than that of water. Therefore, without continuous stirring or flow, these solid particles will sink to the bottom of the container due to gravity. The longer the standing time, the more complete the precipitation of undissolved agent particles. The precipitated undissolved agent may affect the effect of sewage treatment, because they do not play the expected chemical role. In addition, the precipitate may also block the pipeline or affect the subsequent treatment process. SUMMARY

[0004] Technical problems to be solved

[0005] In view of the above shortcomings of the prior art, the present application provides an automatic dosing device of a metering pump for sewage treatment, which can effectively solve the problem of incomplete dissolution of the agent and precipitation affecting the effect of sewage treatment.

[0006] Technical scheme

[0007] To achieve the above purpose, the present application is realized by the following technical scheme:

[0008] The present application provides an automatic dosing device of a metering pump for sewage treatment, comprising:

[0009] a dosing tank;

[0010] The transmission part is located at the outer top end of the dosing tank and is used for transmitting the dissolved medicament, the transmission part comprises a transmission pipe connected with the dosing tank and the linkage mixing tank, a driving element is arranged on the side of the transmission pipe close to the dosing tank, a screening element for screening the dissolved medicament is arranged at the position below the driving element in the transmission pipe, and the screening element can slide in the cavity of the transmission pipe to intercept the undissolved medicament particles outside the dosing tank.

[0011] The lower medicine outlet is located at the outer bottom end of the dosing tank and is used for automatically adding the chemical medicament into the sewage.

[0012] The transmission part further comprises a fixed block fixedly arranged on the outside of the driving element, and a cleaning element for self-cleaning of the undissolved medicament particles is arranged on the inside of the fixed block.

[0013] The driving element comprises a fixed ring fixedly arranged on the outside of the transmission pipe, a fixed plate fixedly connected to the top end of the fixed ring, a motor arranged on the outer end of the fixed plate, a fixed rod drivingly connected to the output end of the motor, a screw tooth fixedly connected to the middle part of the fixed rod, and a tooth ring meshingly connected to the bottom end of the screw tooth.

[0014] The screening element comprises a limiting ring fixedly connected to the inside of the tooth ring, a sealing ring fixedly connected to the side edge of the limiting ring, and a sieve plate fixedly connected to the inside of the limiting ring.

[0015] Further, one end of the fixed rod penetrates through the fixed plate and is rotationally connected to the inside of the fixed plate.

[0016] Further, the transmission pipe further comprises a screening pipe matched with the inner surface of the fixed ring, a positioning ring groove is formed in the inner wall of the screening pipe and is in sliding sealing with the surface of the sealing ring, the inside of the positioning ring groove is slidingly connected with the tooth ring, an arc-shaped groove is formed in the top middle part of the screening pipe, the tooth ring is arranged at the lower part inside the arc-shaped groove, and the screw tooth is embedded in the upper part inside the arc-shaped groove.

[0017] Further, the cleaning element is arranged on the outside of the screening pipe, the cleaning element comprises a positioning block fixedly connected to the side edge of the screening pipe, a scraper fixedly connected to the bottom end of one side of the positioning block, a side plate one arranged on the side edge of the scraper, the side plate one being fixedly connected to the middle part of one side of the screening pipe, a side plate two arranged on the side edge of the side plate one, a handle fixedly connected to the top end of the side plate two, and the handle being slidingly connected with the middle part of the fixed block.

[0018] Further, the two ends of the scraper are arranged in an arc shape, the size of the scraper is equal to the diameter of the sieve plate, the scraper is matched with one side of the sieve plate, and the side of the scraper away from the side plate one is arranged as an inclined surface.

[0019] Further, the side plate one, the side plate two and the handle constitute a cavity for temporarily storing the undissolved medicine particles, and a gap exists between the cavity and the side plate two slope.

[0020] Advantages

[0021] Compared with the prior art, the technical scheme provided by the present application has the following advantages:

[0022] The present application is provided with a screening element, a starting motor, the motor rotating to drive the fixed rod inside the fixed plate to rotate, the fixed rod rotating to drive the screw teeth to rotate, the screw teeth rotating to drive the tooth ring connected therewith to rotate, the tooth ring sliding inside the positioning ring groove, the tooth ring driving the screening element to rotate under the limitation of the positioning ring groove, compared with the screening element with fixed position, the rotating screening element not only makes the material move quickly on the screen, increases the contact opportunity of the material and the screen, speeds up the screening process, but also makes the material jump on the screen, which helps the material pass through the screen hole, reduces the adhesion of the material on the screen, the vibration of the screen makes the material jump on the screen, which helps the material pass through the screen hole, reduces the adhesion of the material on the screen, and the material is always subjected to the gravity in the screening process, the combined action of the gravity, centrifugal force and vibration force makes the material effectively separated on the screen.

[0023] The present application is provided with a cleaning element, the side plate one, the side plate two and the handle constituting a rectangular cavity, the opening of the cavity being in contact with the scraper, a gap existing between the scraper and the side plate two side, the screen plate rotating to relatively rotate with the scraper, the undissolved medicine particles on the surface of the screen plate being able to enter the inside of the cavity along the scraper slope, due to the rotation of the screen plate, the medicine particles are more accumulated on the periphery of the screen plate, the scraper gradually moves the particles accumulated on the periphery into the inside of the cavity, thereby self-cleaning the surface of the screened screen plate, avoiding the blockage of the screen plate. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0025] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application;

[0026] Figure 2 It is a schematic diagram of the transmission part structure side of the embodiment of the present application;

[0027] Figure 3 It is a perspective view of the driving element structure of the embodiment of the present application;

[0028] Figure 4 The separated structure diagram of the transmission pipe, the driving member and the screening member of the embodiment of the present application;

[0029] Figure 5 The structure separated diagram of the cleaning member of the embodiment of the present application.

[0030] Figure 6 The structure separated diagram of the cleaning member of the embodiment of the present application.

[0031] The reference signs in the drawings represent: 1, the medicine adding tank; 2, the transmission part; 21, the transmission pipe; 211, the screening pipe; 212, the positioning ring groove; 213, the arc-shaped groove; 22, the driving member; 221, the fixed plate; 222, the fixed rod; 223, the screw tooth; 224, the motor; 225, the fixed ring; 226, the tooth ring; 23, the screening member; 231, the screen plate; 232, the limiting ring; 233, the sealing ring; 24, the fixed block; 25, the cleaning member; 251, the side plate one; 252, the side plate two; 253, the handle; 254, the scraper; 255, the positioning block; 3, the medicine adding port. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0033] The present application will be further described below in combination with the embodiments.

[0034] Embodiment:

[0035] Please refer to Figures 1-6 The present application provides a technical scheme of an automatic medicine adding device for a metering pump for sewage treatment: the device comprises a medicine adding tank 1 for temporarily storing a dissolved medicine solution, a transmission part 2 is arranged at the top of the outer side of the medicine adding tank 1, the transmission part 2 is communicated with the medicine adding tank 1 and a mixing tank, the dissolved medicine in the mixing pipe is transmitted to the medicine adding tank 1 through the transmission part 2, the structure of the mixing tank is the same as that of the stirring tank in the prior art, the medicine and water are mixed and stirred uniformly, and then transmitted through the transmission part 2, and there may be some medicine particles that are not completely dissolved in the dissolved solution.

[0036] In order to avoid the incomplete dissolution of the drug particles into the dosing tank 1, the solid particles are precipitated to the bottom of the container due to gravity, and the precipitated undissolved medicament may affect the effect of sewage treatment, even block the pipeline or affect the subsequent treatment process, and the sieving is carried out on the dissolved medicament during the transmission from the dosing tank 1 to the transmission part 2, so as to avoid the undissolved particles into the dosing tank 1, and the dosing port 3 is located at the bottom end of the dosing tank 1 for automatically adding the chemical medicament to the sewage, and according to the control system, the dosing port 3 is controlled to accurately and automatically add the required medicament solution to the sewage.

[0037] To this end, the present application is provided with a sieving element 23 as shown in Figure 2 , which can be provided in multiple numbers and placed in order according to the size of the screen holes, and in this embodiment, one is taken as an example, the sieving element 23 is arranged on the side of the transmission part 2 close to the dosing tank 1, and with reference to Figure 3 and Figure 4 , the sieving element 23 comprises a screen plate 231 uniformly provided with a plurality of screen holes, the outer surface of the circular shaft of the screen plate 231 is fixedly connected with a limiting ring 232, the side edge of the limiting ring 232 is provided with a sealing ring 233, the outer surface of the circular shaft of the limiting ring 232 is fixedly connected with a tooth ring 226, the tooth ring 226 is embedded in the inner side of the positioning ring groove 212, the position part of the sieving element 23 in the cavity of the transmission pipe 21 is a sieving pipe 211, the inner side of the sieving pipe 211 is provided with a positioning ring groove 212, the side edge of the inner wall of the positioning ring groove 212 is provided with a sealing layer for sliding sealing with the sealing ring 233, the inner wall of the positioning ring groove 212 is slidingly connected with the outer surface of the tooth ring 226, the width of the screen plate 231 is greater than the width of the tooth ring 226, the two sides of the screen plate 231 are flush with the side edges of the sieving pipe 211, the tooth ring 226 can drive the limiting ring 232 fixedly connected therewith to slide in the inner side of the positioning ring groove 212, the limiting ring 232 drives the screen plate 231 to slide synchronously, and the sealing ring 233 always maintains sliding sealing with the side edge of the positioning ring groove 212, so as to quickly complete the screening process when the medicament solution passes through the sieving element 23.

[0038] With reference to Figure 2 , Figure 3 and Figure 4The outer surface of the sifting pipe 211 embedded with the sifting piece 23 is fixedly connected with the driving piece 22, the driving piece 22 can also be arranged in detachable connection with the outer surface of the sifting pipe 211, overall cleaning and maintenance of the driving piece 22 are realized, the driving piece 22 comprises a fixed ring 225 in close contact with the outer surface of the circular shaft of the sifting pipe 211, the top end of the fixed ring 225 is fixedly connected with a fixed plate 221, the fixed plate 221 is penetrated through the middle part of the fixed plate 221, and a fixed rod 222 is rotatably connected with the middle part of the fixed plate 221, one end of the fixed rod 222 is in transmission connection with the output end of a motor 224, the motor 224 is rotatable to drive the fixed rod 222 to rotate in the fixed plate 221, a screw tooth 223 is sleeved on the outer side of the middle part of the fixed rod 222, the bottom end of the screw tooth 223 is embedded on the upper position of the arc-shaped groove 213 opened at the top end of the sifting pipe 211, the length of the screw tooth 223 is less than the length of the arc-shaped groove 213, the screw tooth 223 does not contact the inner wall of the arc-shaped groove 213 when rotating, and the two do not interfere with each other, the arc-shaped groove 213 penetrates through the positioning ring groove 212, and the top end part of a tooth ring 226 is always located at the lower position of the arc-shaped groove 213, and the bottom end of the screw tooth 223 is in meshing connection with the top end of the tooth ring 226.

[0039] The motor 224 is started, the motor 224 drives the fixed rod 222 in the fixed plate 221 to rotate, the fixed rod 222 drives the screw tooth 223 to rotate, the screw tooth 223 drives the tooth ring 226 in meshing connection therewith to rotate, the tooth ring 226 slides in the inner side of the positioning ring groove 212, the tooth ring 226 drives the sifting piece 23 to rotate under the limitation of the positioning ring groove 212, compared with the sifting piece 23 with an unchanged fixed position, the rotating sifting piece 23 not only makes the material quickly move on the screen, increases the contact opportunity of the material with the screen, and speeds up the screening process, but also makes the material produce jumping motion on the screen surface, which is helpful for the material to pass through the screen hole and reduces the adhesion of the material on the screen surface, the vibration of the screen makes the material produce jumping motion on the screen surface, which is helpful for the material to pass through the screen hole and reduces the adhesion of the material on the screen surface, the material is always subjected to the action of gravity in the screening process, and the combined action of the gravity, the centrifugal force and the vibration force makes the material effectively separated on the screen surface.

[0040] Reference Figure 4 , Figure 5 and Figure 6The two sides of the screen plate 231 are flush with the surface of the screening pipe 211, one end of the screening pipe 211 is provided with a cleaning piece 25, the cleaning piece 25 includes a positioning block 255 fixedly connected with one end of the screening pipe 211, a scraper 254 is fixedly connected with one side of the positioning block 255 close to the screen plate 231, the length size of the scraper 254 is equal to the size of the screen plate 231, and the two ends of the scraper 254 are provided in an arc shape, the scraper 254 is always completely attached to the surface of the screen plate 231, one side of the scraper 254 is attached to the surface of the screen plate 231, the other side of the scraper 254 is provided in an inclined surface, and one side of the large size of the inclined surface is fixedly connected with a side plate one 251, the side plate one 251 is provided in an L-shaped plate, the inner wall of the side plate one 251 is attached to one side of the scraper 254, one side of the side plate one 251 is fixedly connected with the side of the screening pipe 211, and the other side of the side plate one 251 is located in the inside of the fixed block 24, the fixed block 24 is fixedly arranged on the outside of the driving piece 22, the inner wall of the side plate one 251 is slidably connected with a side plate two 252, the side plate two 252 is closely attached to the inner wall of the side plate one 251, and a handle 253 is fixedly connected with the top end of the side plate two 252.

[0041] The side plate one 251, the side plate two 252 and the handle 253 form a rectangular cavity, the opening of the cavity is at the attachment of the scraper 254, there is a gap between the side of the scraper 254 and the side plate two 252, the screen plate 231 rotates relatively with the scraper 254, and the undissolved medicine particles on the surface of the screen plate 231 can enter the inside of the cavity along the inclined surface of the scraper 254. Due to the rotation of the screen plate 231, more medicine particles are accumulated on the periphery of the screen plate 231, the scraper 254 gradually moves the particles accumulated on the periphery into the inside of the cavity, so that the surface of the screened screen plate 231 is self-cleaned, and the screen plate 231 is prevented from being blocked.

[0042] With the gradual accumulation of particles in the cavity, the staff pulls the handle 253 slidably connected in the middle of the fixed block 24 after a period of time, the handle 253 drives the side plate two 252 to move upwards, the accumulated particles are removed from the cavity with the side plate two 252, and the waste of medicine is reduced after unified collection, in the process that the side plate two 252 moves upwards, the lower part of the cavity is in an open state, the particles will fall on the periphery of the screen plate 231 again under the action of gravity and gradually accumulate, and will not be left on the inner wall of the side plate one 251, when the side plate two 252 moves downwards to the initial position, the side plate two 252 cleans the inner wall of the side plate one 251, until the side plate two 252 moves downwards to the bottom end of the side plate one 251, the top end of the handle 253 is engaged above the side plate one 251, the cavity returns to the state that only the gap between the side plate two 252 and the scraper 254 is the entrance of the particles, the accumulation of particles in the cavity during the cleaning process is avoided, and the cleaning efficiency is improved.

[0043] The above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalent features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present application.

Claims

1. A metering pump automatic dosing device for sewage treatment, characterized in that, Include: Medicated tank (1); Transmission part (2), the transmission part (2) is located at the top end outside the medicated tank (1) for transmitting the dissolved medicament, the transmission part (2) includes the transmission pipe (21) of linkage mixing tank and medicated tank (1), the transmission pipe (21) is provided with driving element (22) on the side close to the medicated tank (1) outside, the transmission pipe (21) is provided with the screening element (23) for screening the dissolved medicament at the position below driving element (22), the screening element (23) can slide in the cavity inside the transmission pipe (21), the undissolved medicament particles are intercepted outside the medicated tank (1); The lower medicine port (3) is located at the bottom end outside the medicated tank (1) for automatically adding chemical reagent to sewage; Wherein, the transmission part (2) further includes a fixed block (24) fixedly arranged outside the driving element (22), and the fixed block (24) is internally provided with a cleaning element (25) for self-cleaning of undissolved medicament particles; The driving element (22) includes a fixed ring (225) fixedly arranged outside the transmission pipe (21), a fixed plate (221) fixedly connected to the top end of the fixed ring (225), a motor (224) arranged at the outer end of the fixed plate (221), a fixed rod (222) drivingly connected to the output end of the motor (224), a screw tooth (223) fixedly connected to the middle portion of the fixed rod (222), and a tooth ring (226) meshingly connected to the bottom end of the screw tooth (223); One end of the fixed rod (222) penetrates through the fixed plate (221) and is rotatably connected inside the fixed plate (221); The screening element (23) includes a limiting ring (232) fixedly connected inside the tooth ring (226), a sealing ring (233) fixedly connected to the side edge of the limiting ring (232), and a sieve plate (231) fixedly connected inside the limiting ring (232); The transmission pipe (21) further includes a screening pipe (211) fitted with the inner surface of the fixed ring (225), a positioning ring groove (212) formed in the inner wall of the screening pipe (211) for sliding sealing with the surface of the sealing ring (233), the positioning ring groove (212) is slidably connected with the tooth ring (226) inside, an arc-shaped groove (213) is formed in the top middle portion of the screening pipe (211), the tooth ring (226) is arranged inside the lower portion of the arc-shaped groove (213), and the screw tooth (223) is embedded in the upper portion of the arc-shaped groove (213).

2. The automatic dosing device for metering pump of sewage treatment according to claim 1, characterized in that: The cleaning element (25) is arranged outside the screening pipe (211), the cleaning element (25) includes a positioning block (255) fixedly connected with the side edge of the screening pipe (211), a scraper (254) fixedly connected to the bottom end of one side of the positioning block (255), a side plate one (251) arranged at the side edge of the scraper (254), the side plate one (251) is fixedly connected with the middle portion of one side of the screening pipe (211), a side plate two (252) arranged at the side edge of the side plate one (251), a handle (253) fixedly connected to the top end of the side plate two (252), and the handle (253) is slidably connected with the middle portion of the fixed block (24).

3. The automatic dosing device for metering pump of sewage treatment according to claim 2, characterized in that: The scraper (254) is provided with arc-shaped ends, and the size of the scraper (254) is equal to the diameter of the sieve plate (231); the scraper (254) is attached to one side of the sieve plate (231), and the side of the scraper (254) away from the side plate one (251) is provided with an inclined surface.

4. The automatic dosing device for metering pump of sewage treatment according to claim 3, characterized in that: The side plate one (251), the side plate two (252) and the handle (253) form a cavity for temporarily storing undissolved medicine particles, and a gap exists between the cavity and the inclined surface of the side plate two (252).

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