Chemical agent feeding device for sewage treatment

Abstract

The utility model discloses a chemical agent feeding device for sewage treatment, which comprises a chemical agent storage tank, the chemical agent storage tank is movably arranged on the side wall of a working bridge of a secondary sedimentation tank through a walking mechanism, a plurality of mud scraping plates are arranged at the bottom of the working bridge, and a discharge pipe is arranged at an opening at the bottom end of the chemical agent storage tank; during use, the working bridge is started to rotate on the secondary sedimentation tank, the walking mechanism is started to enable the medicine storage tank to move on the working bridge, and the second motor is started to drive the rotating shaft to drive the bearing disc to rotate at a high speed, so that the penetrating pipe can be driven to rotate by the planetary reducing mechanism; the rotating auger blade is used for conveying medicament particles in the medicament storage tank downwards in the discharging pipe, so that the medicament particles fall into the receiving disc which rotates at a high speed and are thrown out by the receiving disc under the action of centrifugal force, the medicament particles are uniformly thrown into the secondary sedimentation tank, and the sewage in the secondary sedimentation tank is uniformly stirred in cooperation with the disturbance effect of the mud scraping plate on the sewage in the secondary sedimentation tank. The mixing efficiency of the medicament and sewage can be effectively improved, and the use effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field, specifically a chemical agent feeding device for sewage treatment. BACKGROUND

[0002] The secondary sedimentation tank is an important component of the sewage treatment system, which separates sludge and water, clarifies the mixed liquid, thickens the sludge, and returns the separated sludge to the biological treatment section. A rotatable working bridge is installed on many secondary sedimentation tanks, and a mud scraping plate is installed at the bottom of the working bridge to remove the sludge at the bottom of the tank, promote the separation of sludge and water, ensure the water quality, improve the treatment efficiency, reduce the accumulation of sludge, and optimize the water flow state in the tank.

[0003] During the operation of the secondary sedimentation tank, flocculants and phosphorus removal agents are usually added to the tank according to the state of the sewage to ensure the treatment effect of the sewage. However, the traditional dosing device can only add the chemicals to the fixed position in the tank, and since the secondary sedimentation tank has a large volume and lacks stirring components except the mud scraping plate, the chemicals added are often difficult to mix uniformly with the sewage in the tank quickly. Therefore, we propose a chemical agent feeding device for sewage treatment. SUMMARY

[0004] The utility model aims at providing a chemical agent feeding device for sewage treatment to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A chemical agent feeding device for sewage treatment, comprising a chemical storage tank, the chemical storage tank is movably installed on the side wall of the working bridge of the secondary sedimentation tank through a walking mechanism, a plurality of mud scraping plates are installed at the bottom of the working bridge, a discharge pipe is installed at the bottom opening of the chemical storage tank, a top cover is fixedly installed at the top opening of the chemical storage tank, a feeding hopper is installed on the top cover, a transmission box is fixedly installed at the top of the top cover, a second motor is fixedly installed at the top of the transmission box, a rotating shaft is fixedly connected to the output shaft of the second motor, a receiving disc is fixedly connected to the lower end of the rotating shaft after the rotating shaft passes out of the discharge pipe, a penetrating pipe is rotatably sleeved to the outer wall of the rotating shaft in the chemical storage tank, auger blades are fixedly sleeved to the outer wall of the penetrating pipe in the discharge pipe, and the penetrating pipe is transmissionally connected to the rotating shaft through a planetary reducer after penetrating into the transmission box.

[0007] As a further scheme of the utility model: the planetary reduction mechanism includes the sun gear fixedly installed on the inner wall of the transmission case, the outer wall fixed sleeve of the sun gear in the sun gear is provided with the central gear, the inner side of the sun gear is provided with three planetary gears, three the planetary gears are circumferentially distributed on the outside of the central gear, and three the planetary gears are engaged with the central gear and the sun gear, the central hole of the planetary gear is rotatably provided with the connecting shaft through the bearing, the outer wall of the sun gear in the transmission case is rotatably provided with the rotating disc, the rotating disc is rotatably connected with the top cover through the bearing, the low end of the connecting shaft is fixedly connected with the rotating disc, and the top of the pipe is fixedly connected with the rotating disc after penetrating into the transmission case.

[0008] As a further scheme of the utility model: the pipe in the outer wall of the medicine storage tank is rotatably provided with the retainer through the bearing, and the retainer is fixedly connected with the inner wall of the medicine storage tank.

[0009] As a further scheme of the utility model: the walking mechanism includes the sliding seat fixedly installed on the outer wall of the medicine storage tank, the sliding seat is slidably installed on the side wall of the working bridge, the sliding seat is fixedly installed with the reduction stepper motor, the output shaft of the reduction stepper motor is fixedly connected with the first gear, the outer wall of the working bridge is fixedly connected with the rack at the corresponding position of the first gear, and the rack and the first gear are engaged with each other.

[0010] As a further scheme of the utility model: the outer wall of the sliding seat is fixedly connected with a plurality of sliding sleeves, the sliding sleeve is slidably provided with the guide rail, the guide rail is fixedly connected with the working bridge, the outer wall of the working bridge above the rack is fixedly installed with the rain shield, and the first gear and the rack are located below the rain shield.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] The utility model discloses in using, the working bridge is rotated on the secondary sedimentation tank, and simultaneously, the walking mechanism is started to make the medicine storage tank move on the working bridge, and the second motor is started to drive the rotating shaft and drive the receiving disc high -speed rotation, can utilize the planetary reduction mechanism to drive the pipe rotation to utilize the rotating auger blade to convey the medicament particle in the medicine storage tank in the discharge pipe downward, so that the medicament particle falls into the receiving disc of high -speed rotation, and is thrown out under the centrifugal force of the receiving disc, to the medicament particle is more evenly scattered into the secondary sedimentation tank, and the disturbance effect of the mud scraping plate to the sewage in the secondary sedimentation tank, can effectively improve the efficiency of the medicament and sewage mixing, and the use effect is good. ACCURACY OF DRAWINGS

[0013] Figure 1 It is a kind of sewage treatment with chemical medicament feeding device's structural schematic diagram.

[0014] Figure 2 It is a structure schematic view of a walking mechanism in a chemical agent feeding device for sewage treatment.

[0015] Figure 3 It is a partial enlarged view of Figure 2 .

[0016] Wherein, the secondary sedimentation tank 1, the working bridge 2, the mud scraping plate 3, the medicine storage tank 4, the sliding seat 5, the sliding sleeve 6, the guide rail 7, the reduction step motor 8, the first gear 9, the rack 10, the rain shield 11, the top cover 12, the transmission box 13, the second motor 14, the rotating shaft 15, the receiving disc 16, the central gear 17, the planetary gear 18, the sun gear 19, the connecting shaft 20, the rotating disc 21, the pipe 22, the retainer 23, the discharge pipe 24, the auger blade 25. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0018] Please refer to Figures 1 to 3 , in the embodiments of the present application, a chemical agent feeding device for sewage treatment, including medicine storage tank 4, the medicine storage tank 4 is movably installed on the working bridge 2 side wall of the secondary sedimentation tank 1 through the walking mechanism, the bottom of the working bridge 2 is provided with a plurality of mud scraping plate 3, the bottom end opening of the medicine storage tank 4 is provided with a discharge pipe 24, the top opening of the medicine storage tank 4 is fixedly installed with top cover 12, and the top cover 12 is installed with feeding hopper, the top of the top cover 12 is fixedly installed with transmission box 13, the top of the transmission box 13 is fixedly installed with second motor 14, the output shaft of the second motor 14 is fixedly connected with rotating shaft 15, the low end of the rotating shaft 15 is fixedly connected with receiving disc 16 after being penetrated by the discharge pipe 24, the outer wall of the rotating shaft 15 in the medicine storage tank 4 is rotatably sleeved with pipe 22, the outer wall of the pipe 22 in the discharge pipe 24 is fixedly sleeved with auger blade 25, the top end of the pipe 22 penetrates into the transmission box 13 and is drivingly connected with the rotating shaft 15 through the planetary reduction mechanism.

[0019] The utility model discloses a through adopting above -mentioned scheme, when needing to add reagent to the secondary sedimentation tank 1 in using, only need to pour reagent into the storage jar 4 by feeding hopper, and then start the working bridge 2 and rotate on the secondary sedimentation tank 1, and simultaneously start the walking mechanism and make the storage jar 4 move on the working bridge 2, and start the second motor 14 and drive the rotating shaft 15 to drive the receiving tray 16 high -speed rotation, can utilize the planetary reduction mechanism drive pipe 22 rotation to utilize the rotating auger blade 25 to convey the reagent particle in the storage jar 4 in the discharge pipe 24 downward, to make the reagent particle fall into the receiving tray 16 of high -speed rotation, and be thrown out by the receiving tray 16 under the action of centrifugal force, to pour the reagent particle relatively evenly into the secondary sedimentation tank 1, and cooperate the mud scraping plate 3 and the disturbance effect of the sewage in the secondary sedimentation tank 1, can effectively improve the efficiency that reagent mixes with sewage, and the use effect is good.

[0020] Specifically combined Figure 3 In an embodiment of the utility model, the planetary reduction mechanism includes the sun gear 19 of fixed mounting on the inner wall of transmission case 13, the outer wall fixed sleeve of the rotating shaft 15 in the sun gear 19 is equipped with the central gear 17, the inside of sun gear 19 is equipped with three planetary gears 18, three the planetary gear 18 is circumferentially distributed on the outside of central gear 17, and three the planetary gear 18 is engaged with central gear 17 and sun gear 19, the central hole of planetary gear 18 is rotatably equipped with connecting shaft 20 through bearing, the outer wall rotatable sleeve of rotating shaft 15 in transmission case 13 is equipped with rotating disc 21, rotating disc 21 is rotatably connected with top cover 12 through bearing, the low end of connecting shaft 20 is fixedly connected with rotating disc 21, the top of pipe 22 is fixedly connected with rotating disc 21 after being inserted into transmission case 13.

[0021] By starting the second motor 14 and driving the rotating shaft 15 rotation, can utilize the central gear 16 and drive each planetary gear 18 to rotate on the corresponding connecting shaft 20, and because each planetary gear 18 is engaged with sun gear 19, so the planetary gear 18 will rotate around the central gear 16, to drive rotating disc 21 and pipe 22 rotation, to utilize auger blade 25 and convey the reagent in the storage jar 4, to ensure that the receiving tray 16 can be with higher speed to throw out the reagent, and the transmission ratio between pipe 22 and rotating shaft 15 is preferably 1:50-80.

[0022] Specifically combined Figure 2 In an embodiment of the utility model, the outer wall rotatable sleeve of pipe 22 in the storage jar 4 is equipped with retainer 23 through bearing, and the inner wall of storage jar 4 is fixedly connected with retainer 23.

[0023] Through the setting of retainer 23, the stability of pipe 22 rotation in the storage jar 4 can be improved.

[0024] Specifically combined Figure 2 In one embodiment of the utility model, walking mechanism includes the slide 5 of fixed installation on the outer wall of storage tank 4, the slide 5 can be slidably installed on the lateral wall of working bridge 2, fixedly installed with reduction stepper motor 8 in the slide 5, the output shaft of reduction stepper motor 8 is fixedly connected with first gear 9, and the outer wall of working bridge 2 is fixedly connected with rack 10 at the corresponding place of first gear 9, and rack 10 and first gear 9 are engaged with each other.

[0025] By starting reduction stepper motor 8, first gear 9 can be driven to rotate, so that storage tank 4 moves along the length direction of working bridge 2 by using the cooperation of first gear 9 and rack 10, which is simple in structure and stable in work.

[0026] Specifically combined Figure 2 On the basis of the last embodiment, further, the outer wall of slide 5 is fixedly connected with a plurality of sliding sleeves 6, the sliding sleeve 6 is slidably provided with guide rail 7, the guide rail 7 is fixedly connected with working bridge 2, the outer wall of working bridge 2 is fixedly installed with rain shield 11 above rack 10, and first gear 9 and rack 10 are all located below rain shield 11.

[0027] Through the cooperation of guide rail 7 and sliding sleeve 6, the sliding connection between slide 5 and working bridge 2 is realized, so that the stability of the movement of storage tank 4 is effectively improved, and in order to avoid that sliding sleeve 6 falls off from guide rail 7, limiting stopper can be installed at both ends of guide rail 7, and through the setting of rain shield 11, the contact of rack 10 and first gear 9 with rainwater can be reduced.

[0028] In addition, in some preferable embodiments of the utility model, reduction stepper motor 8 and second motor 14 are all powered by on-site distribution box on working bridge 2, and the on-site distribution box is also provided with switch or controller for controlling reduction stepper motor 8 and second motor 14.

[0029] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A chemical reagent dosing device for wastewater treatment, characterized in that: The utility model provides a mud feeding device for secondary sedimentation tank, including storage tank (4), storage tank (4) is movably installed on the side wall of the working bridge (2) of secondary sedimentation tank (1) through the walking mechanism, the bottom of working bridge (2) is installed with a plurality of mud scraping plate (3), the bottom opening of storage tank (4) is installed with the discharge pipe (24), the top opening of storage tank (4) is fixedly installed with top cover (12), and the top cover (12) is installed with the feeding hopper, the top of top cover (12) is fixedly installed with transmission case (13), the top of transmission case (13) is fixedly installed with second motor (14), the output shaft of second motor (14) is fixedly connected with the rotating shaft (15), the low end of rotating shaft (15) is fixedly connected with the receiving disc (16) after going out through the discharge pipe (24), the outer wall of rotating shaft (15) in storage tank (4) rotatably sleeve connects with the pipe (22), the outer wall of pipe (22) in discharge pipe (24) fixedly sleeve connects with the auger blade (25), the top end of pipe (22) goes into transmission case (13) and is transmissionally connected with rotating shaft (15) through planetary reduction mechanism.

2. The chemical dosing device for sewage treatment according to claim 1, characterized in that: The planetary reduction mechanism includes a sun gear (19) fixedly installed on the inner wall of the transmission case (13), the outer wall of the rotating shaft (15) in the sun gear (19) is fixedly sleeved with a central gear (17), the inner side of the sun gear (19) is provided with three planetary gears (18), the three planetary gears (18) are circumferentially distributed on the outer side of the central gear (17), and the three planetary gears (18) are in mesh with the central gear (17) and the sun gear (19), the central holes of the planetary gears (18) are rotatably provided with connecting shafts (20) through bearings, the outer wall of the rotating shaft (15) in the transmission case (13) is rotatably sleeved with a rotating disc (21), the rotating disc (21) is rotatably connected with the top cover (12) through a bearing, the low ends of the connecting shafts (20) are fixedly connected with the rotating disc (21), and the top end of the pipe (22) goes into the transmission case (13) and is fixedly connected with the rotating disc (21).

3. The chemical dosing device for sewage treatment according to claim 1, characterized in that: The outer wall of the pipe (22) in the storage tank (4) is rotatably sleeved with a retainer (23) through a bearing, and the retainer (23) is fixedly connected with the inner wall of the storage tank (4).

4. The chemical dosing device for sewage treatment according to claim 1, characterized in that: The walking mechanism includes a sliding seat (5) fixedly installed on the outer wall of the storage tank (4), the sliding seat (5) is slidably installed on the side wall of the working bridge (2), a reduction stepper motor (8) is fixedly installed in the sliding seat (5), a first gear (9) is fixedly connected with the output shaft of the reduction stepper motor (8), a rack (10) is fixedly connected with the corresponding position of the first gear (9) on the outer wall of the working bridge (2), and the rack (10) and the first gear (9) are in mesh with each other.

5. The chemical dosing apparatus for sewage treatment according to claim 4, characterized in that: The outer wall of the sliding seat (5) is fixedly connected with a plurality of sliding sleeves (6), a guide rail (7) is slidably arranged in the sliding sleeve (6), the guide rail (7) is fixedly connected with the working bridge (2), the outer wall of the working bridge (2) is fixedly installed with a rain baffle (11) above the rack (10), and the first gear (9) and the rack (10) are located below the rain baffle (11).

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