Aeration mixing device for placing sewage treatment agent

Abstract

The invention discloses an aeration and mixing device for placing sewage treatment agents, which relates to the field of sewage treatment equipment and comprises a tank body, wherein a liquid outlet and an aeration device are arranged at the bottom of the tank body, a mixing mechanism is arranged in the tank body, a partition is arranged in the tank body and can move between a first position and a second position, when in the first position, the partition abuts against the bottom of the inner cavity of the tank body, when in the second position, the partition divides the inner cavity of the tank body into an upper space and a lower space, an opening connecting the upper space and the lower space is provided on the partition, and a first door for opening or closing the opening is provided at the opening; the mixing device for placing sewage treatment agents, through the arranged partition, enables a single tank body to perform continuous mixing operations, avoids the need to wait for mixing time when re-deploying the treatment agent, or arranges a spare tank body, reduces the space occupied by the mixing device, and ensures the efficiency of sewage treatment.

Description

Technical Field

[0001] The invention relates to sewage treatment equipment technology, and in particular to an aeration mixing device used for placing sewage treatment agents. Background Art

[0002] Treatment agents are usually added to purify the water during sewage treatment. Some treatment agents are in the form of solid particles or powders. When used, solvents need to be added to prepare them into liquid agents so that their concentration and other parameters meet the use requirements. The liquid agents are then added to the sewage according to the usage amount for reaction. The preparation of treatment agents is generally carried out in a tank. After adding a certain amount of solvent and solid treatment agent, they are stirred and mixed for a certain period of time, and finally transported to the sewage through conveying equipment such as metering pumps;

[0003] However, after the liquid treatment agent in the tank is mixed, the amount of treatment agent in the tank gradually decreases with the increase in usage. When the amount cannot meet the subsequent use, it needs to be redistributed. Redistribution requires suspending the delivery of treatment agent to the sewage, and re-adding a certain amount of solid treatment agent and solvent into the tank for stirring and mixing. This will cause the sewage treatment process to be suspended during this period of time, affecting the efficiency of sewage treatment. The prior art generally adopts the method of setting up a spare tank for alternate allocation, but it requires a large space and the equipment and other costs are also high. Summary of the invention

[0004] The purpose of the present invention is to provide an aeration mixing device for placing sewage treatment agents to solve the above-mentioned shortcomings in the prior art.

[0005] In order to achieve the above-mentioned object, the present invention provides the following technical solution: an aeration and mixing device for placing a sewage treatment agent, comprising a tank body, a liquid outlet and an aeration device are arranged at the bottom of the tank body, and further comprising:

[0006] A stirring mechanism is arranged in the tank;

[0007] a partition, which is disposed in the tank body and can move between a first position and a second position, wherein the partition abuts against the bottom of the tank body cavity in the first position, and the partition divides the tank body cavity into an upper space and a lower space in the second position, and the partition is provided with an opening connecting the upper space and the lower space, and the opening is provided with a first door for opening or closing the opening;

[0008] A moving mechanism, which is used to move the partition, the moving mechanism includes a first guide rod installed at the bottom of the tank body, the inner wall of the middle part of the partition is slidably connected to the surface of the first guide rod, and the moving mechanism also includes a moving member for driving the partition to move along the length direction of the first guide rod;

[0009] The door opening mechanism is used to drive the first door to open or close. The first door is rotatably connected to the first guide rod. The door opening mechanism includes a rotating member, which is used to drive the first door to rotate around the central axis of the first guide rod to open or close the opening.

[0010] Furthermore, the stirring mechanism comprises a stirring rod and a stirring blade, and the stirring blade is located above the partition.

[0011] Furthermore, the separator is in the shape of a truncated cone that is concave downward.

[0012] Furthermore, the inclined surface on the top of the separator is provided with guide strips distributed in a ring array and protruding upward.

[0013] Furthermore, the guide strip is curved from the middle of the partition toward the outside.

[0014] Furthermore, the bottom of the stirring blade has an inclined end matched with the inclined surface of the top of the partition, and when the partition moves to the second position, the inclined end abuts against the guide bar or has a gap.

[0015] Furthermore, an air inlet is provided on the side wall of the tank body, and the air inlet is connected to the lower space.

[0016] A method for using a sewage treatment agent mixing device is applicable to the aeration mixing device for placing sewage treatment agents as described above, and specifically comprises the following steps:

[0017] S101, when at least part of the mixed liquid remains in the tank, the partition moves to the second position and the first door is closed, and the remaining mixed liquid is located in the lower space;

[0018] S102, adding raw materials to be mixed into the upper space, and starting a stirring device to stir and mix;

[0019] S103, after the mixing is completed, the first door is opened and then the partition is moved to the first position, or the partition is moved to the first position and then the first door is opened.

[0020] Compared with the prior art, the aeration mixing device for placing sewage treatment agents provided by the present invention has the following beneficial effects:

[0021] The mixing device for placing sewage treatment agents, through the provided partition, enables a single tank to perform continuous mixing operations, avoiding the need to wait for mixing when re-deploying treatment agents, or providing a spare tank, reducing the space required for the mixing device, and ensuring the efficiency of sewage treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0023] Figure 1 A schematic diagram of the overall structure of a mixing device provided in an embodiment of the present invention;

[0024] Figure 2 The embodiment of the present invention provides Figure 1 Schematic diagram of the local longitudinal section structure;

[0025] Figure 3 A schematic diagram of a partial structure of a separator and a stirring mechanism provided in an embodiment of the present invention;

[0026] Figure 4 The embodiment of the present invention provides Figure 3 Schematic diagram of the structure of the middle separator and the stirring mechanism in the separated state;

[0027] Figure 5 A schematic diagram of a structure in which a guide strip provided in an embodiment of the present invention is disposed on a separator in a curved shape;

[0028] Figure 6 A schematic diagram of a partial longitudinal section structure of a moving mechanism and a door opening mechanism provided in an embodiment of the present invention;

[0029] Figure 7 A schematic structural diagram of a separator, a first guide rod, a moving block and a threaded rod in a separated state provided in an embodiment of the present invention.

[0030] Description of reference numerals:

[0031] 1. Tank body; 11. Feed inlet; 12. Liquid outlet; 13. Upper space; 14. Lower space; 15. Air inlet; 2. Stirring mechanism; 21. Stirring rod; 22. Stirring blade; 23. Inclined end; 3. Partition; 31. Opening; 32. Guide strip; 4. First door; 5. Moving mechanism; 51. First guide rod; 52. Moving block; 53. Moving groove; 54. Pin shaft; 55. First slide groove; 56. Threaded rod; 6. Door opening mechanism; 61. Connecting rod; 62. Second slide groove; 63. Third slide groove; 64. Fourth slide groove. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] For examples, see Figure 1 - Figure 7, an aeration and mixing device for placing a sewage treatment agent, comprising a tank body 1, a feed inlet 11 is arranged on the top of the tank body 1, a liquid outlet 12 and an aeration device (not shown in the figure) are arranged on the bottom of the tank body 1, the feed inlet 11 is used to add raw materials into the tank body 1, and the liquid after mixing is transported from the liquid outlet 12, a stirring mechanism 2 is arranged in the tank body 1, the stirring mechanism 2 comprises a stirring rod 21 and a stirring blade 22, and a stirring motor (not shown in the figure) for driving the stirring rod 21 to rotate, and the stirring motor is installed on the top of the tank body 1;

[0034] A partition 3 is provided in the tank body 1, and the partition 3 can move between a first position and a second position. In the first position, the partition 3 abuts against the bottom of the inner cavity of the tank body 1. In the second position, the partition 3 divides the inner cavity of the tank body 1 into an upper space 13 and a lower space 14. The upper space 13 is used for mixing raw materials, and the lower space 14 is used for storing the treatment agent after mixing. An opening 31 connecting the upper space 13 and the lower space 14 is provided on the partition 3, and a first door 4 for opening or closing the opening 31 is provided at the opening 31;

[0035] The moving mechanism 5 is used to move the partition 3 between the first position and the second position. The door opening mechanism 6 is used to drive the first door 4 to open or close. After the first door 4 is opened, the upper space 13 is connected with the lower space 14, and the material in the upper space 13 can enter the lower space 14 through the opening 31.

[0036] In one embodiment of the present invention, the stirring blade 22 is located above the partition 3, and when the partition 3 moves to the second position, the stirring blade 22 can perform stirring operation in the upper space 13;

[0037] After the partition 3 moves to the second position, new raw materials can be added to the upper space 13 for mixing. Generally, solid raw materials are first added to the tank body 1, and then part of the solvent is added for stirring to dissolve the solid raw materials as quickly as possible. A small amount of solvent can increase the friction between solid particles or powders, which is beneficial to the collision and friction between large particles or agglomerated powder groups. At the same time, a small amount of solvent makes the liquid level lower, and the solid particles or powder groups will produce a certain friction and collision with the top surface of the partition. This process can accelerate the dissolution. Finally, the remaining required solvent is added to the tank body 1 for final mixing. At this time, the time required for mixing will be greatly shortened, which is beneficial to the efficiency of treating agent replenishment when using a single tank body 1 for drug delivery, so that a single tank body 1 can operate continuously. It is worth mentioning that the height of the second position in the tank body 1 determines the size of the upper space 13 and the lower space 14. Generally, since each delivery of the treating agent has a certain time interval, the lower space 14 does not need a larger space. In normal use, the time that the treating agent stored in the lower space 14 can be used is not less than the time required for the upper space 13 to remix the treating agent.

[0038] By setting the partition 3, a single tank can perform continuous mixing operations, avoiding the need to wait for mixing when re-preparing the treatment agent, or setting a spare tank to reduce the space required for the mixing device, thereby ensuring the efficiency of sewage treatment and improving the mixing efficiency: the stirring mechanism 2 cooperates with the movable partition 3, so that the upper space 13 and the lower space 14 can efficiently mix materials. Since the upper space 13 can quickly remix the treatment agent, the device realizes the continuous operation of a single tank and improves the replenishment efficiency of the treatment agent. This design makes it possible to effectively utilize time during treatment intervals and improve the overall work efficiency of the system; through the optimized stirring and mixing process, the dissolution rate of large particles or agglomerated powders is increased, and the efficiency and stability of the subsequent mixing process are improved.

[0039] The aeration device is used to enhance the fluidity of the liquid in the lower space 14 and maintain the uniformity of the mixing system. When the lower space 14 is used, it avoids the problem of reduced uniformity of the mixing system due to the lack of stirring of the stirring mechanism 2. It should be noted that the aeration device is a means of the prior art and will not be described in detail here. The corresponding specific structure is not drawn in the figure, and it will not cause trouble to the technical solution based on the field.

[0040] In one embodiment of the present invention, the separator 3 is in the shape of a downwardly concave truncated cone. After a small amount of solvent is added, it has the effect of gathering the solvent to the middle of the separator 3. The solvent carries the solid raw material to be dissolved and moves, and rubs and collides with the inclined surface of the separator 3, thereby accelerating the dissolution of the solid raw material.

[0041] In one embodiment of the present invention, the inclined surface at the top of the partition 3 is provided with guide strips 32 distributed in a ring array and protruding upward. The guide strips 32 have the function of hindering the movement of the liquid. When the stirring mechanism 2 allows the liquid to flow through the guide strips 32, the liquid is hindered by the guide strips 32 and the speed suddenly decreases, which increases the degree of disorder of the fluid and promotes better contact between the solid and the liquid, thereby improving the mixing efficiency. The flow and disorder of the fluid can improve the uniformity of the solid dissolution process and avoid the situation where the local concentration is too high or too low.

[0042] In one embodiment of the present invention, the guide strip 32 is curved from the middle of the partition 3 to the outside, and the bending direction is the same as the vortex direction of the mixed liquid. Figure 5 As shown, the mixed liquid flows along a rotation direction under the stirring of the stirring mechanism 2, and the rotation direction is the same as the bending direction of the guide strip 32, so that the flow of the liquid will flow to the outside of the partition 3 under the setting of the guide strip 32. Further, under the setting of the partition 3 in a truncated cone shape, the liquid will diffuse outward along the inclined surface of the partition 3, and the flow of the liquid will drive the entrained solid raw materials to move together, so as to contact the surface of the partition 3 and the guide strip 32. Under the setting of the guide strip 32 and the shape setting of the partition 3, the solid raw materials will be retained in the setting area of ​​the guide strip 32 to a large extent, and the solid raw materials will be washed away under the continuous flow of the liquid, thereby further improving the dissolution efficiency.

[0043] It is worth mentioning that the partition 3 mentioned above can also be in the shape of a cone with an upward protrusion in the middle and a horizontal outer side. The opening 31 is arranged on the outer side of the partition 3, and the guide strip 32 is arranged on the inclined surface in the middle. The arrangement method thereof is the same as that of the other components. It can be foreseen that this method can produce the same effect and function, and no detailed description is given here.

[0044] In one embodiment of the present invention, the bottom of the stirring blade 22 has an inclined end 23 that is compatible with the inclined surface of the top of the partition 3. The inclined end 23 can be an integral structure with the stirring blade 22 or an inclined rod can be installed on one end of the stirring blade 22 facing the inclined surface of the partition 3. When the partition 3 moves to the second position, the inclined end 23 abuts against the guide bar 32 or has a gap. During the rotation of the stirring blade 22, it will further squeeze any larger particles or agglomerated raw materials that may exist by abutting against the guide bar 32 or having a certain gap. Under the setting of the guide bar 32, there is a greater probability that adjacent guide bars 32 will limit the movement of larger particles or agglomerated raw materials, thereby improving the dissolution efficiency of solid raw materials under the rotation of the stirring blade 22.

[0045] In one embodiment of the present invention, a solid raw material discharge mechanism (not shown) may also be installed in the tank body 1, and the discharge port of the discharge mechanism is located above the inclined portion of the partition 3, so that the solid raw material can fall into the area where the guide strip 32 is located.

[0046] In one embodiment of the present invention, the moving mechanism 5 includes a first guide rod 51 installed at the bottom of the tank body 1, the inner wall of the middle part of the partition 3 is slidably connected to the surface of the first guide rod 51, and the moving mechanism 5 also includes a moving member for driving the partition 3 to move along the length direction of the first guide rod 51;

[0047] In one embodiment of the present invention, the first door 4 is rotatably connected to the first guide rod 51, and the door opening mechanism 6 includes a rotating member, which is used to drive the first door 4 to rotate around the central axis of the first guide rod 51 to open or close the opening 31;

[0048] In one embodiment of the present invention, the moving member includes a first connecting rod, one end of the first connecting rod is connected to the bottom of the partition 3, the other end of the first connecting rod passes through the bottom of the tank body 1 and is slidably connected to the inner wall of the tank body 1, the bottom of the first connecting rod is connected to the piston rod of the cylinder or the piston rod of the hydraulic cylinder or the telescopic rod of the electric telescopic rod, and the cylinder body of the cylinder or the cylinder body of the hydraulic cylinder or the cylinder body of the electric telescopic rod is arranged and installed below the tank body 1 in the vertical direction;

[0049] In one embodiment of the present invention, the rotating member includes a second connecting rod, one end of the second connecting rod is rotatably connected to the bottom of the partition 3, the other end of the second connecting rod passes through the bottom of the tank body 1 and is movably connected to the inner wall of the tank body 1, the upper end of the second connecting rod is fixedly connected to the first gear, the bottom of the first door 4 is connected to the second gear, the first gear is meshingly connected to the second gear, and the lower end of the second connecting rod is connected to the output end of the electric motor or the output end of the pneumatic motor or the output end of the hydraulic motor. The first gear is driven to rotate by driving the second connecting rod, and the rotation of the first gear drives the second gear to rotate and drives the first door 4 to rotate around the central axis of the first guide rod 51, thereby opening or closing the first door 4. It should be noted that the second connecting rod can rotate and slide on the inner wall of the bottom of the tank body 1.

[0050] In one embodiment of the present invention, another specific example of a moving member and a rotating member is provided, which can drive the movement of the partition 3 and the first door 4 by linkage cooperation to simplify the overall mechanical structure. Specifically, the moving member includes a moving block 52, a moving groove 53 for the moving block 52 to slide is provided in the first guide rod 51 along its axial direction, two pins 54 are fixedly installed on the surface of the moving block 52, and two first slide grooves 55 for the two pins 54 to slide are provided on the first guide rod 51. The pins 54 extend to the outside of the first slide grooves 55 and are limitedly connected to the inner wall of the partition 3. A threaded rod 56 is provided in the first guide rod 51, and the threaded rod 56 is threadedly connected to the moving block 52. One end of the threaded rod 56 is connected to the output end of the electric motor or the output end of the pneumatic motor or the output end of the hydraulic motor. By driving the threaded rod 56 to rotate, the moving block 52 is driven to move in the moving groove 53 and the partition 3 is driven to move upward or downward;

[0051] The rotating member includes a connecting rod 61 fixedly mounted on the surface of the moving block 52, the two connecting rods 61 are slidably connected to the two first slide grooves 55 respectively, one end of the connecting rod 61 is fixedly connected to the first door 4, a second slide groove 62 and a third slide groove 63 are provided on the first guide rod 51 and at the end of the first slide groove 55, through which the pin shaft 54 ​​and the connecting rod 61 can rotate around the central axis of the first guide rod 51, and a fourth slide groove 64 is provided on the inner side of the partition 3, through which the pin shaft 54 ​​can rotate;

[0052] like Figure 6 and Figure 7 As shown, the threaded rod 56 rotates to drive the moving block 52 to move upward, and the moving block 52 drives the partition 3 and the first door 4 to move upward synchronously through the pin shaft 54 ​​and the connecting rod 61. When the moving block 52 moves upward to the end of its stroke, the continued rotation of the threaded rod 56 will not allow the moving block 52 to continue to move upward. At this time, the moving block 52 will rotate around the central axis of the first guide rod 51, and the pin shaft 54 ​​and the connecting rod 61 will slide along the second slide groove 62 and the third slide groove 63 on the first guide rod 51 respectively, and the pin shaft 54 ​​will also slide along the fourth slide groove 64. During the rotation of the moving block 52, the pin shaft 54 ​​always maintains a longitudinal limit position with the partition 3, and the connecting rod 61 will drive the first door 4 to rotate relative to the partition 3, so that the first door 4 closes the opening 31 on the partition 3.

[0053] It should be noted that a seal is provided at the rotational connection between the first door 4 and the partition 3, and a seal is also installed at the sliding portion between the partition 3 and the inner wall of the tank body 1, so that after the partition 3 moves to the second position, liquid will not leak into the lower space 14;

[0054] In this way, efficient control of the specific movements of the partition 3 and the first door 4 is achieved, thereby improving the overall operating efficiency of the mechanical system, reducing energy consumption and equipment costs, and improving the reliability of equipment operation.

[0055] In one embodiment of the present invention, in order to facilitate the liquid in the lower space 14 to flow out from the liquid outlet 12 of the tank body 1, an air inlet 15 can be set on the side wall of the tank body 1 or an air inlet pipe can be set from the top of the tank body 1. The air inlet 15 or the air inlet pipe is connected to the lower space 14 to balance the pressure when liquid flows into or out of the lower space 14.

[0056] In one embodiment of the present invention, a method for using a sewage treatment agent mixing device is provided, which is applicable to the above-mentioned aeration mixing device and specifically comprises the following steps:

[0057] S101, when at least part of the mixed liquid remains in the tank body 1, the partition 3 moves to the second position and the first door 4 is closed, and the remaining mixed liquid is located in the lower space 14;

[0058] S102, adding raw materials to be mixed into the upper space 13, and starting a stirring device to stir and mix;

[0059] S103, when the mixing is completed, the first door 4 is opened, or the partition 3 is moved to the first position after the first door 4 is opened, or the partition 3 is moved to the first position and then the first door 4 is opened.

[0060] It should be noted that in step S103:

[0061] When the amount of liquid in the upper space 13 is large, the first door 4 can be opened first and then the partition 3 can be moved, so that part of the liquid in the upper space 13 will first flow to the lower space 14, thereby reducing the amount of liquid in the upper space 13 and reducing the load of the moving parts;

[0062] When the amount of liquid in the upper space 13 is small, optionally, the partition 3 may be moved to the first position first, and then the first door 4 may be opened;

[0063] When the lower space 14 in the tank body 1 is consumed quickly, the lower space 14 can be used as a storage space for long-term storage of the mixed post-processing machine, that is, the partition 3 is always in the second position in this case, and after each mixing in the upper space 13 is completed, the mixed liquid not exceeding the capacity of the lower space 14 is transported to the lower space 14 through the opening 31.

[0064] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the present invention.

Claims

1. An aeration and mixing device for placing a sewage treatment agent, comprising a tank body (1), wherein a liquid outlet (12) and an aeration device are arranged at the bottom of the tank body (1), and the characteristics are: A stirring mechanism (2) disposed in the tank body (1); A partition (3) is arranged in the tank body (1) and is movable between a first position and a second position. When in the first position, the partition (3) abuts against the bottom of the inner cavity of the tank body (1). When in the second position, the partition (3) divides the inner cavity of the tank body (1) into an upper space (13) and a lower space (14). The partition (3) is provided with an opening (31) that communicates the upper space (13) and the lower space (14). The opening (31) is provided with a first door (4) for opening or closing the opening (31). A moving mechanism (5) for moving the partition (3), the moving mechanism (5) comprising a first guide rod (51) mounted on the bottom of the tank body (1), the inner wall of the middle portion of the partition (3) being slidably connected to the surface of the first guide rod (51), the moving mechanism (5) further comprising a moving member for driving the partition (3) to move along the length direction of the first guide rod (51); a door opening mechanism (6) for driving the first door (4) to open or close, the first door (4) being rotatably connected to the first guide rod (51), the door opening mechanism (6) comprising a rotating member, the rotating member being used to drive the first door (4) to rotate around a central axis of the first guide rod (51) to open or close the opening (31); The stirring mechanism (2) comprises a stirring rod (21) and a stirring blade (22), wherein the stirring blade (22) is located above the partition (3); The separator (3) is in the shape of a truncated cone that is concave downwards; The inclined surface at the top of the separator (3) is provided with guide strips (32) distributed in a ring array and protruding upwards, and the guide strips (32) are curved from the middle of the separator (3) toward the outside; The bottom of the stirring blade (22) has an inclined end (23) adapted to the inclined surface of the top of the partition (3); when the partition (3) moves to the second position, the inclined end (23) abuts against the guide strip (32) or has a gap therebetween.

2. The aeration and mixing device for placing sewage treatment agents according to claim 1, characterized in that: An air inlet (15) is provided on the side wall of the tank body (1), and the air inlet (15) is connected to the lower space (14).

3. A method for using a sewage treatment agent mixing device, characterized in that: The aeration mixing device for placing a sewage treatment agent according to any one of claims 1 or 2 specifically comprises the following steps: S101, when at least part of the mixed liquid remains in the tank body (1), the partition (3) moves to the second position and the first door (4) is closed, and the remaining mixed liquid is located in the lower space (14); S102, adding raw materials to be mixed into the upper space (13), and starting a stirring device to stir and mix; S103: After the mixing is completed, the first door (4) is opened and then the partition (3) is moved to the first position, or the partition (3) is moved to the first position and then the first door (4) is opened.

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