Medicament mixing device for harmless treatment of sludge

Abstract

The utility model relates to the technical field of sludge treatment, and discloses a chemical mixing device for sludge harmless treatment, which comprises a mixing barrel, a side plate is fixedly connected to the side wall of the mixing barrel, a packing auger conveyor is arranged at the top of the side plate and communicated with the mixing barrel, a crushing box is arranged at the top of the packing auger conveyor, and the crushing box is communicated with the mixing barrel. The bottom of the crushing box is communicated with the auger conveyor, a blocking mechanism is arranged at the top of the crushing box, an agent box is arranged at the top of the side plate at the bottom, a water pump is fixedly connected to the top of the agent box, a liquid conveying pipe is fixedly connected to the output end of the water pump, and the liquid conveying pipe penetrates through the side wall of the mixing barrel and extends into the mixing barrel; a stirring mechanism is arranged in the mixing barrel. According to the sludge treatment device, large stones or garbage in the sludge are blocked through the sieve plate, so that the impurities are prevented from entering the subsequent process, the abrasion to equipment is reduced, and the smoothness of the treatment flow is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge treatment, in particular to a drug mixing device for harmless sludge treatment. Background Art

[0002] Sludge is solid waste generated during sewage treatment and is widely found in municipal sewage treatment plants, industrial wastewater treatment facilities and other fields. Untreated sludge contains a large amount of organic matter, pathogenic microorganisms, heavy metals and other pollutants, posing a threat to the environment and human health. In order to reduce environmental pollution and waste of resources, sludge harmless treatment has become a key technology. Through chemical treatment, harmful substances can be effectively removed, while the physical and chemical properties of sludge can be improved, and it can be converted into pollution-free nutrient soil, which can be further used for landscaping, soil improvement, etc., to achieve resource reuse.

[0003] At present, the reagent mixing devices used in sludge harmless treatment mainly include mechanical stirring devices and pipeline mixing devices. Mechanical stirring devices use stirring blades to mix reagents and sludge, which is suitable for high-viscosity sludge, but it is easily disturbed by debris such as stones or garbage in the sludge during the treatment process, resulting in increased equipment wear or poor operation. The pipeline mixing device uses fluid kinetic energy to achieve dispersed mixing of reagents. It has a simple structure and is suitable for continuous treatment, but it also has limited filtering capacity for debris. Once stones or garbage enter the device, it may cause pipeline blockage, affecting the mixing efficiency and subsequent treatment process. Therefore, a reagent mixing device for sludge harmless treatment is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a drug mixing device for harmless treatment of sludge, aiming to improve the problem that the prior art cannot effectively separate large pieces of debris in the sludge.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A chemical mixing device for harmless treatment of sludge, comprising a mixing barrel, a side plate fixedly connected to the side wall of the mixing barrel, an auger conveyor arranged on the top of the side plate, the auger conveyor being connected to the mixing barrel, a crushing box arranged on the top of the auger conveyor, the bottom of the crushing box being connected to the auger conveyor, a blocking mechanism arranged on the top of the crushing box, a chemical box arranged on the top of the side plate, a water pump fixedly connected to the top of the chemical box, an infusion tube fixedly connected to the output end of the water pump, the infusion tube penetrating the side wall of the mixing barrel and extending to the inside, a stirring mechanism arranged inside the mixing barrel;

[0007] The blocking mechanism includes a sieve plate, the sieve plate is arranged on the top of the crushing box, the side wall of the crushing box is fixedly connected with a fixed block, the side wall of the fixed block is rotatably connected with an articulated frame, the side wall of the articulated frame is fixedly connected to the side wall of the sieve plate, the crushing box and the side wall of the sieve plate are both fixedly connected with a side frame, the inside of the side frame is rotatably connected with a rotating block, and an electric push rod is arranged between the rotating blocks;

[0008] As a further description of the above technical solution:

[0009] The stirring mechanism comprises a barrel cover, which is arranged on the top of the mixing barrel, a motor is fixedly connected to the top of the barrel cover, and a rotating shaft is fixedly connected to the output end of the motor;

[0010] As a further description of the above technical solution:

[0011] The side wall of the rotating shaft is fixedly connected to a limit plate, and the side wall of the rotating shaft is slidably connected to a slip ring;

[0012] As a further description of the above technical solution:

[0013] The side wall of the slip ring is fixedly connected with a connecting rod, and the side wall of the connecting rod is fixedly connected with a conical stirring blade;

[0014] As a further description of the above technical solution:

[0015] A plurality of bolt holes are provided inside the rotating shaft, and plugs are provided inside the bolt holes;

[0016] As a further description of the above technical solution:

[0017] The slip ring is internally threadedly connected with a fixing bolt, and the fixing bolt is threadedly connected inside the bolt hole;

[0018] As a further description of the above technical solution:

[0019] The limit plate is slidably connected inside the slip ring;

[0020] As a further description of the above technical solution:

[0021] A scraper is fixedly connected to the bottom of the rotating shaft, and the scraper is in contact with the inner wall of the mixing barrel.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, the large stones or garbage in the sludge are blocked by the screen plate to prevent these debris from entering the subsequent process, thereby reducing the wear on the equipment and ensuring the smoothness of the processing process. When the stones or garbage accumulated on the top of the screen plate affect the sludge pouring, the electric push rod is started, and the screen plate is flipped up through the cooperation of the rotating block, so that the stones and garbage on the top of the screen plate are smoothly flipped down and removed, and then the screen plate is reset by the electric push rod to prepare for the subsequent sludge pouring operation;

[0024] 2. In the utility model, the fixing bolt is unscrewed from the bolt hole of the current connection, and the obstruction in the bolt hole to be connected after the move is taken out, the sliding ring is slid to change the height of the conical mixing blade, and then the fixing bolt is rotated and screwed into the bolt hole corresponding to the adjusted height, and the bolt hole of the original height is inserted into the obstruction, thereby completing the adjustment of the distance between the upper and lower groups of conical mixing blades, thereby improving the adaptability and practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of a drug mixing device for harmless sludge treatment proposed by the utility model;

[0026] Figure 2 This is a structural schematic diagram of the top of a crushing box of a chemical mixing device for harmless sludge treatment proposed by the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of a mixing barrel of a drug mixing device for harmless sludge treatment proposed by the utility model;

[0028] Figure 4 The utility model is a schematic structural diagram of a rotating shaft of a chemical mixing device for harmless sludge treatment.

[0029] Legend:

[0030] 1. Mixing barrel; 2. Side plate; 3. Crushing box; 4. Auger conveyor; 5. Screen plate; 6. Fixed block; 7. Articulated frame; 8. Side frame; 9. Rotating block; 10. Electric push rod; 11. Medicine box; 12. Water pump; 13. Infusion tube; 14. Barrel cover; 15. Motor; 16. Rotating shaft; 17. Scraper; 18. Bolt hole; 19. Blockage; 20. Limit plate; 21. Slip ring; 22. Fixed bolt; 23. Connecting rod; 24. Conical stirring blade. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1-Figure 2 The utility model provides an embodiment: a medicament mixing device for harmless treatment of sludge, comprising a mixing barrel 1, a side plate 2 is fixedly connected to the side wall of the mixing barrel 1, a screw conveyor 4 is arranged on the top of the top side plate 2, the screw conveyor 4 is connected to the mixing barrel 1, a crushing box 3 is arranged on the top of the screw conveyor 4, the bottom of the crushing box 3 is connected to the screw conveyor 4, a blocking mechanism is arranged on the top of the crushing box 3, a medicament box 11 is arranged on the top of the bottom side plate 2, a water pump 12 is fixedly connected to the top of the medicament box 11, and the water pump 1 The output end is fixedly connected with a liquid infusion tube 13, which penetrates the side wall of the mixing barrel 1 and extends to the inside, and a stirring mechanism is arranged inside the mixing barrel 1; the blocking mechanism includes a sieve plate 5, which is arranged on the top of the crushing box 3, and a fixed block 6 is fixedly connected to the side wall of the crushing box 3, and a hinge frame 7 is rotatably connected to the side wall of the fixed block 6, and the side wall of the hinge frame 7 is fixedly connected to the side wall of the sieve plate 5, and the side walls of the crushing box 3 and the sieve plate 5 are fixedly connected with a side frame 8, and a rotating block 9 is rotatably connected inside the side frame 8, and an electric push rod 10 is arranged between the rotating blocks 9;

[0033] When the equipment is used to harmlessly treat sludge, first, the sludge to be treated is poured from above the sieve plate 5 into the crushing box 3. The sieve plate 5 plays a role of preliminary screening in this process, effectively blocking large stones or garbage in the sludge, thereby preventing these debris from interfering with subsequent processes. Subsequently, the sludge enters the crushing box 3. The crushing box 3 is an existing and traceable technology. Through the driving element inside the crushing box 3, the grinding rollers inside the crushing box 3 are engaged and rotated with each other under the cooperation of the gears to crush the sludge, thereby ensuring the uniformity and fluidity of the sludge, and laying the foundation for subsequent transportation and mixing. The treated sludge flows from the crushing box 3 into the auger conveyor 4. The auger conveyor 4 is an existing and traceable technology. By starting the driving element inside the crushing box 3, the grinding rollers inside the crushing box 3 are engaged and rotated with each other to crush the sludge, thereby ensuring the uniformity and fluidity of the sludge, and laying the foundation for subsequent transportation and mixing. The driving element drives the auger blades to rotate, thereby conveying the sludge to the inside of the mixing barrel 1. The cooperation between the crushing box 3 and the auger conveyor 4 not only improves the overall operating efficiency of the equipment, but also reduces the need for manual intervention. When the stones or garbage piled on the top of the sieve plate 5 hinder the pouring of sludge, the electric push rod 10 can be started, and the sieve plate 5 can be flipped up under the action of the rotating block 9, so as to clean up the debris on its surface. Subsequently, the sieve plate 5 is reset by the electric push rod 10, so that the equipment can quickly resume normal operation. When the sludge enters the mixing barrel 1 smoothly, the water pump 12 is started to extract the medicine in the medicine box 11 and inject it into the mixing barrel 1 through the infusion tube 13, thereby completing the material preparation work before mixing treatment.

[0034] Reference Figure 3-Figure 4 The stirring mechanism includes a barrel cover 14, which is arranged on the top of the mixing barrel 1, and a motor 15 is fixedly connected to the top of the barrel cover 14, and a rotating shaft 16 is fixedly connected to the output end of the motor 15, and a limit plate 20 is fixedly connected to the side wall of the rotating shaft 16, and a slip ring 21 is slidably connected to the side wall of the rotating shaft 16, and a connecting rod 23 is fixedly connected to the side wall of the slip ring 21, and a conical stirring blade 24 is fixedly connected to the side wall of the connecting rod 23, and a plurality of bolt holes 18 are opened inside the rotating shaft 16, and a plug 19 is arranged inside the bolt hole 18, and a fixing bolt 22 is threadedly connected inside the slip ring 21, and the fixing bolt 22 is threadedly connected inside the bolt hole 18, and the limit plate 20 is slidably connected inside the slip ring 21, and a scraper 17 is fixedly connected to the bottom of the rotating shaft 16, and the scraper 17 is in contact with the inner wall of the mixing barrel 1.

[0035] When the sludge and the reagent enter the mixing barrel 1, the motor 15 is started, and the conical stirring blade 24 and the scraper 17 are synchronously driven to start operation through the rotation of the rotating shaft 16. The scraper 17 is close to the inner wall of the mixing barrel 1 during the rotation process, and can timely scrape off the sludge attached to the inner wall of the mixing barrel 1, so that the sludge and the reagent can fully contact and mix in the shortest time, thereby avoiding the problem of sludge residue and improving the material utilization rate. At the same time, the conical stirring blade 24 generates uniformly distributed fluid shear force when rotating, which can not only effectively avoid the phenomenon of liquid layer separation, but also further enhance the uniformity and depth of stirring, greatly improving the mixing efficiency and effect. In order to meet the needs of different material quantities and working conditions, before starting the stirring mechanism, the user can separate the barrel cover 14 from the mixing barrel 1, and optimize the stirring effect by adjusting the spacing between the upper and lower groups of conical stirring blades 24. By twisting the fixing bolt 22, the plug 19 in the current connecting bolt hole 18 is removed, and then the sliding ring 21 is slid to change the height of the conical stirring blade 24. After repositioning according to actual needs, the fixing bolt 22 is inserted into the adjusted corresponding bolt hole 18, and the plug 19 is inserted back into the bolt hole 18 at the original position to complete the adjustment operation. This makes the equipment flexible and adaptable, and effectively reduces energy waste or equipment wear caused by ineffective stirring.

[0036] Working principle: When the equipment is used for harmless treatment of sludge, the sludge to be treated is first poured from the top of the sieve plate 5 into the crushing box 3. At this time, large stones or garbage in the sludge will be blocked to prevent it from affecting subsequent processes. After the sludge enters the crushing box 3, the crushing box 3 is started to crush the sludge to prevent it from agglomerating inside. The treated sludge will enter the auger conveyor 4. At this time, the auger conveyor 4 is started again to send it into the mixing barrel 1. When the stones or garbage accumulated on the top of the sieve plate 5 affect the pouring of the sludge, the electric push rod 10 is started to flip the sieve plate 5 upwards with the cooperation of the rotating block 9, and the stones and garbage on the top of the sieve plate 5 are turned down, and then the sieve plate 5 is driven to reset by the electric push rod 10. After the sludge enters the mixing barrel 1, the water pump 12 is started to extract the medicine in the medicine box 11 and send it into the mixing barrel 1 through the infusion tube 13. At this point, all processes before the sludge mixing treatment are completed;

[0037] When the sludge and the reagent enter the mixing barrel 1, the motor 15 is started to drive the rotating shaft 16 to rotate, and then the conical stirring blade 24 and the scraper 17 are synchronously driven to rotate. The scraper 17 will scrape off the sludge attached to the inner wall of the mixing barrel 1, so that it is fully mixed with the reagent. When the conical stirring blade 24 rotates, the shear force of the fluid in the mixing process is evenly distributed, and at the same time, the liquid layer separation phenomenon can be avoided, thereby improving the mixing uniformity of the sludge and the reagent.

[0038] Before starting the stirring mechanism, the barrel cover 14 can be separated from the mixing barrel 1, and the distance between the upper and lower groups of conical stirring blades 24 can be adjusted according to the amount of material to be fed into the mixing barrel 1 to avoid ineffective stirring. When adjusting the distance, the fixing bolt 22 is twisted from the currently connected bolt hole 18, and the plug 19 in the bolt hole 18 to be connected after the move is taken out, and the sliding ring 21 is slid to change the height of the conical stirring blade 24, and then the fixing bolt 22 is twisted to transfer it into the bolt hole 18 corresponding to the adjusted height, and the plug 19 in the bolt hole 18 is inserted into the bolt hole 18 at the original height. At this point, the distance adjustment between the upper and lower groups of conical stirring blades 24 is completed, thereby improving the practicality of the equipment.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A chemical mixing device for harmless sludge treatment, comprising a mixing barrel (1), characterized in that: The side wall of the mixing barrel (1) is fixedly connected to a side plate (2); the top of the side plate (2) is provided with an auger conveyor (4); the auger conveyor (4) is connected to the mixing barrel (1); the top of the auger conveyor (4) is provided with a crushing box (3); the bottom of the crushing box (3) is connected to the auger conveyor (4); the top of the crushing box (3) is provided with a blocking mechanism; the top of the side plate (2) is provided with a medicine box (11); the top of the medicine box (11) is fixedly connected to a water pump (12); the output end of the water pump (12) is fixedly connected to an infusion tube (13); the infusion tube (13) passes through the side wall of the mixing barrel (1) and extends to the inside; the mixing barrel (1) is provided with a stirring mechanism; The blocking mechanism comprises a sieve plate (5), wherein the sieve plate (5) is arranged on the top of a crushing box (3), a fixed block (6) is fixedly connected to the side wall of the crushing box (3), a hinged frame (7) is rotatably connected to the side wall of the fixed block (6), a side wall of the hinged frame (7) is fixedly connected to the side wall of the sieve plate (5), the crushing box (3) and the side wall of the sieve plate (5) are both fixedly connected to a side frame (8), a rotating block (9) is rotatably connected inside the side frame (8), and an electric push rod (10) is arranged between the rotating blocks (9).

2. The chemical mixing device for harmless treatment of sludge according to claim 1, characterized in that: The stirring mechanism comprises a barrel cover (14), wherein the barrel cover (14) is arranged on the top of the mixing barrel (1), a motor (15) is fixedly connected to the top of the barrel cover (14), and a rotating shaft (16) is fixedly connected to the output end of the motor (15).

3. The chemical mixing device for harmless sludge treatment according to claim 2, characterized in that: The side wall of the rotating shaft (16) is fixedly connected to a limit plate (20), and the side wall of the rotating shaft (16) is slidably connected to a slip ring (21).

4. The chemical mixing device for harmless sludge treatment according to claim 3 is characterized in that: A connecting rod (23) is fixedly connected to the side wall of the slip ring (21), and a conical stirring blade (24) is fixedly connected to the side wall of the connecting rod (23).

5. The chemical mixing device for harmless sludge treatment according to claim 3 is characterized in that: A plurality of bolt holes (18) are provided inside the rotating shaft (16), and a plug (19) is provided inside the bolt hole (18).

6. The chemical mixing device for harmless sludge treatment according to claim 5, characterized in that: The slip ring (21) is internally threadedly connected to a fixing bolt (22), and the fixing bolt (22) is threadedly connected to the inside of the bolt hole (18).

7. The chemical mixing device for harmless sludge treatment according to claim 3 is characterized by: The limiting plate (20) is slidably connected inside the slip ring (21).

8. The chemical mixing device for harmless sludge treatment according to claim 2, characterized in that: A scraper (17) is fixedly connected to the bottom of the rotating shaft (16), and the scraper (17) is in contact with the inner wall of the mixing barrel (1).

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