Curing and stirring equipment for co-processing river sediment and domestic sludge

Abstract

The utility model discloses curing stirring equipment for co-processing river sediment and domestic sludge, which comprises a stirring machine main body, a discharging mechanism is arranged at the bottom of the stirring machine main body, a curing agent feeding mechanism is arranged at the upper end of the stirring machine main body, and the stirring machine main body comprises a stirring hopper, a stirring shaft, a first motor and a control cabinet. The stirring shaft is installed in the stirring hopper and rotationally connected with the stirring hopper, the first motor is installed on the outer side of the stirring hopper and drives the stirring shaft, the curing agent feeding mechanism comprises a sliding rail, a medicine containing hopper, a sliding table, a medicine adding pipe and a fourth motor, the sliding rail is fixedly installed on the upper end face of the stirring hopper, and the medicine containing hopper is movably installed at the upper end of the sliding rail; the sliding table is movably installed at the lower end of the medicine containing hopper, and the medicine adding pipe is fixedly installed on the lower end face of the sliding table. The device disclosed by the utility model has the advantages of uniform distribution of a curing agent, high automation degree of feeding and high discharging efficiency, and solves the problems of non-uniform feeding of the curing agent, poor adaptability and low treatment efficiency of the traditional equipment.

Description

A solidification and mixing device for the co-treatment of riverbed sediment and domestic sewage sludge Technical Field

[0001] This utility model relates to the field of mixer technology, specifically to a solidification mixing device for the co-processing of riverbed sediment and domestic sewage sludge. Background Technology

[0002] With the acceleration of urbanization and the increasing demands for environmental protection, the amount of sewage sludge generated by wastewater treatment plants and bottom sediment produced during river dredging is increasing year by year. This sludge is typically characterized by high water content, high organic matter content, loose structure, and easy putrefaction and foul odor. If not properly treated, it will cause serious environmental pollution. Therefore, how to efficiently and environmentally treat this sludge has become an urgent technical challenge.

[0003] Solidification is a widely used method in sludge treatment technology. Its basic principle is to add a solidifying agent (such as cement, lime, fly ash, etc.) to the sludge, causing the free water in the sludge to be adsorbed or bound, forming a solid substance with a certain strength and stability, thereby achieving sludge reduction, harmlessness, and resource utilization. However, in practical applications, traditional sludge solidification mixing equipment has many problems. Most existing equipment uses manual fixed-point feeding, that is, the solidifying agent is concentrated in a certain position in the mixing hopper. This method easily leads to uneven distribution of the solidifying agent in the sludge, resulting in local accumulation or voids, which affects the overall solidification effect and reduces the strength and stability of the solidified product. In some equipment, the sludge discharge process is slow after mixing, affecting the overall treatment efficiency and making it difficult to meet the needs of continuous operation. Therefore, a solidification mixing device for the co-treatment of riverbed sludge and domestic sewage sludge is needed to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a solidification and mixing device for the co-treatment of riverbed sediment and domestic sewage sludge. It has the advantages of uniform distribution of solidifying agent, high degree of automation of feeding, and high discharge efficiency, and solves the problems of uneven solidifying agent addition, poor adaptability, and low treatment efficiency of traditional equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a solidification and mixing device for the co-treatment of riverbed sediment and domestic sewage sludge, comprising a mixer body, a discharge mechanism at the bottom of the mixer body, and a solidifying agent feeding mechanism at the top of the mixer body;

[0006] The main body of the mixer includes a mixing hopper, a mixing shaft, a first motor, and a control cabinet. The mixing shaft is installed inside the mixing hopper and rotatably connected to it. The first motor is installed on the outside of the mixing hopper to drive the mixing shaft. The curing agent feeding mechanism includes a slide rail, a container hopper, a slide table, a dosing pipe, and a fourth motor. The slide rail is fixedly installed on the upper end face of the mixing hopper. The container hopper is movably installed on the upper end of the slide rail. The slide table is movably installed on the lower end face of the container hopper. The dosing pipe is fixedly installed on the lower end face of the slide table. A second auger rod is rotatably connected inside the dosing pipe. The fourth motor is fixedly installed on the dosing pipe to drive the second auger rod.

[0007] As a preferred embodiment of the solidification and mixing equipment for the co-treatment of riverbed sediment and domestic sewage sludge according to this utility model, the slide rail is provided with a guide rod that slides and cooperates with the medicine hopper, the lower end of the guide rod is provided with a reciprocating screw that is rotatably connected to the slide rail, the side end face of the medicine hopper is provided with a screw hole that cooperates with the reciprocating screw, and the side end face of the slide rail is provided with a third motor that drives the reciprocating screw.

[0008] As a preferred embodiment of the solidification and mixing equipment for the co-treatment of riverbed sediment and domestic sewage sludge according to this utility model, the medicine holding hopper is provided with a partition, which divides the medicine holding hopper into a first storage chamber and a second storage chamber.

[0009] As a preferred embodiment of the solidification and mixing equipment for the co-treatment of riverbed sediment and domestic sewage sludge according to this utility model, the bottom of the inner end face of the hopper is provided with a sliding groove, and the side end face of the slide table is provided with a slider that cooperates with the sliding groove.

[0010] As a preferred embodiment of the solidification and mixing equipment for the co-treatment of riverbed sediment and domestic sewage sludge according to this utility model, the side end face of the hopper is provided with a telescopic cylinder, and the upper end face of the slide is provided with a vertical plate that is fixedly connected to the output shaft of the telescopic cylinder.

[0011] In a preferred embodiment of the solidification and mixing equipment for the co-treatment of riverbed sediment and domestic sewage sludge according to this utility model, the length of the sliding table is twice the length of the chute, and the dosing pipe is located at the bottom center of the sliding table.

[0012] As a preferred embodiment of the solidification and mixing equipment for the co-treatment of riverbed sediment and domestic sewage sludge according to this utility model, the discharge mechanism includes a discharge pipe, a first auger rod, and a second motor. The top of the discharge pipe is provided with a feed inlet that communicates with the bottom of the mixing hopper, and the lower end face of the discharge pipe is provided with a discharge outlet. The first auger rod is installed inside the discharge pipe and rotatably connected to it. The second motor drives the first auger rod at the bottom of the discharge pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model utilizes a slide rail, a reciprocating screw drive, and a movable dosing hopper in conjunction with a third motor to drive the reciprocating screw to rotate. This forces the dosing hopper mounted on the slide rail and the dosing pipe below to slide back and forth along the axis of the stirring shaft. This means that during the dosing process, the curing agent powder or granules are no longer added from a fixed point, but rather evenly and dispersed across the entire length of the sludge within the stirring hopper, following the regular movement of the dosing pipe. This dynamic feeding method effectively solves the problems of localized accumulation and uneven distribution of the curing agent caused by fixed-point feeding in traditional equipment. The curing agent is more evenly dispersed in the sludge, greatly reducing the difficulty and time of subsequent mixing, and significantly improving the sufficiency of contact between the sludge and the curing agent. This solves key problems such as poor localized curing effects, unstable overall curing strength, and low curing agent utilization caused by uneven curing agent distribution, ultimately ensuring a more homogeneous and reliable cured product.

[0015] 2. This utility model, through the design of a chemical hopper, a sliding block mechanism, and a telescopic cylinder drive, efficiently solves the problem of switching solidifying agents when treating different types of sludge. The hopper is divided into two independent storage chambers by a partition, which can store different proportions of solidifying agents suitable for riverbed sludge and domestic sewage sludge respectively. The sliding block, through its side slider engaging with the groove at the bottom of the hopper, can slide left and right under the drive of the telescopic cylinder, thus precisely aligning the discharge port of the dosing pipe with the bottom outlet of the first or second storage chamber. This design allows operators to quickly and automatically switch between different types of solidifying agents as needed or according to a preset program. This solves the problem that single-solidifying agent equipment cannot flexibly handle riverbed sludge and domestic sewage sludge with large compositional differences, and also eliminates the common risks of leakage and pollution when switching solidifying agents, significantly improving the equipment's versatility, ease of operation, and automation level. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 is a top view of this utility model;

[0018] Figure 3 is a cross-sectional view of AA in Figure 2 of this utility model;

[0019] Figure 4 is a schematic diagram of the curing agent adding mechanism of this utility model;

[0020] Figure 5 is a top view of the curing agent adding mechanism of this utility model;

[0021] Figure 6 is a cross-sectional view of BB in Figure 5 of this utility model;

[0022] Figure 7 is a cross-sectional view of the CC section in Figure 6 of this utility model.

[0023] In the diagram: 1. Mixer body; 101. Mixing hopper; 102. Mixing shaft; 103. First motor; 104. Control cabinet; 2. Discharge mechanism; 201. Discharge pipe; 202. Second motor; 203. First auger rod; 204. Feed inlet; 205. Discharge outlet; 3. Curing agent feeding mechanism; 301. Slide rail; 302. Guide rod; 303. Reciprocating screw; 304. Third motor; 305. Chemical hopper; 3051. Partition plate; 3052. First storage chamber; 3053. Second storage chamber; 3054. Slide groove; 3055. Screw hole; 306. Slide table; 3061. Slider; 3062. Dosing pipe; 3063. Second auger rod; 3064. Vertical plate; 307. Telescopic cylinder; 308. Fourth motor. Detailed Implementation

[0024] Please refer to Figures 1-7. A solidification and mixing device for the co-treatment of riverbed sediment and domestic sewage sludge includes a mixer body 1, a discharge mechanism 2 at the bottom of the mixer body 1, and a solidifying agent feeding mechanism 3 at the top of the mixer body 1.

[0025] The mixer body 1 includes a mixing hopper 101, a mixing shaft 102, a first motor 103, and a control cabinet 104. The mixing shaft 102 is installed inside the mixing hopper 101 and rotatably connected to it. The first motor 103 is installed on the outside of the mixing hopper 101 to drive the mixing shaft 102. The curing agent feeding mechanism 3 includes a slide rail 301, a container 305, a slide table 306, a dosing pipe 3062, and a fourth motor 308. The slide rail 301 is fixedly installed on the upper end face of the mixing hopper 101. The container 305 is movably installed on the upper end of the slide rail 301. The slide table 306 is movably installed on the lower end of the container 305. The dosing pipe 3062 is fixedly installed on the lower end face of the slide table 306. A second auger rod 3063 is rotatably connected inside the dosing pipe 3062. The fourth motor 308 is fixedly installed on the dosing pipe 3062 to drive the second auger rod 3063.

[0026] Furthermore, the slide rail 301 is provided with a guide rod 302 that slides and engages with the medicine container 305. The lower end of the guide rod 302 is provided with a reciprocating screw 303 that is rotatably connected to the slide rail 301. The side end face of the medicine container 305 is provided with a screw hole 3055 that engages with the reciprocating screw 303. The side end face of the slide rail 301 is provided with a third motor 304 that drives the reciprocating screw 303.

[0027] The third motor 304 drives the reciprocating screw 303 to rotate, thereby driving the medicine hopper 305 to slide back and forth along the slide rail 301, so that the solidifying agent feeding mechanism 3 feeds the solidifying agent back and forth along the axial direction of the stirring shaft 102, thereby improving the uniformity of solidifying agent feeding and thus improving the sludge solidification effect.

[0028] Furthermore, a partition 3051 is provided inside the medicine container 305, which divides the medicine container 305 into a first storage chamber 3052 and a second storage chamber 3053.

[0029] Since both riverbed sediment and domestic sewage sludge can be treated, and the composition of riverbed sediment and domestic sewage sludge is quite different, the ratio of solidifying agent used for the two is also different. The first storage chamber 3052 stores the solidifying agent for riverbed sediment, and the second storage chamber 3053 stores the solidifying agent for domestic sewage sludge. Users can add the solidifying agent as needed.

[0030] Furthermore, a groove 3054 is provided at the bottom of the inner end face of the medicine container 305, and a slider 3061 that cooperates with the groove 3054 is provided on the side end face of the slide table 306.

[0031] The slide table 306 can slide left and right along the slide groove 3054, so that the dosing pipe 3062 can be connected to the first storage chamber 3052 or the second storage chamber 3053, thereby realizing the switching between different curing agents.

[0032] Furthermore, a telescopic cylinder 307 is provided on the side end face of the medicine container 305, and a vertical plate 3064 is provided on the upper end face of the slide table 306, which is fixedly connected to the output shaft of the telescopic cylinder 307.

[0033] The position of the vertical plate 3064 is adjusted by the telescopic cylinder 307, so that the fixed slide table 306 slides along the slide groove 3054 to realize the automatic switching of curing agent and improve the automation level of the equipment.

[0034] Furthermore, the length of the slide table 306 is twice the length of the slide groove 3054, and the dosing tube 3062 is located at the bottom center of the slide table 306.

[0035] When the dosing tube 3062 is connected to either the first storage chamber 3052 or the second storage chamber 3053, the slide table 306 can always cover the bottom of the hopper 305, thereby preventing the curing agent from leaking.

[0036] Furthermore, the discharge mechanism 2 includes a discharge pipe 201, a first auger rod 203, and a second motor 202. The top of the discharge pipe 201 is provided with a feed inlet 204 that communicates with the bottom of the mixing hopper 101, and the lower end face of the discharge pipe 201 is provided with a discharge outlet 205. The first auger rod 203 is installed inside the discharge pipe 201 and rotatably connected to it. The second motor 202 drives the first auger rod 203 at the bottom of the discharge pipe 201.

[0037] The second motor 202 drives the first auger rod 203 to rotate, thereby continuously discharging the sludge in the mixing bucket 101 from the discharge port 205, which can continuously process the sludge and improve the sludge treatment efficiency.

[0038] When using this equipment, firstly, depending on the type of sludge to be treated, if it is riverbed sludge, the telescopic cylinder 307 drives the vertical plate 3064, causing the sliding table 306 to slide along the groove 3054 in the chemical hopper 305, so that the dosing pipe 3062 connects with the first storage chamber 3052 of the chemical hopper 305. The first storage chamber 3052 contains a solidifying agent for riverbed sludge. If it is domestic sewage sludge, the dosing pipe 3062 connects with the second storage chamber 3053, which contains a solidifying agent suitable for domestic sewage sludge. Then, the third motor 304 is started, which drives the reciprocating screw 303 to rotate. Through the guiding action of the guide rod 302, the chemical hopper 305 slides back and forth along the slide rail 301. At the same time, the fourth motor 308 is started to drive the second auger rod 3063 in the dosing pipe 3062 to rotate, so that the solidifying agent is evenly added into the mixing hopper 101. Next, the first motor 103 is turned on, driving the stirring shaft 102 to mix the riverbed sludge or domestic sewage sludge and solidifying agent fed into the mixing hopper 101. During the mixing process, the discharge mechanism 2 works simultaneously, starting the second motor 202 to drive the first auger rod 203 in the discharge pipe 201 to rotate, sucking the uniformly mixed sludge in the mixing hopper 101 into the feed port 204 at the top of the discharge pipe 201, and continuously discharging it through the discharge port 205, thus achieving continuous treatment of the sludge.

[0039] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A solidification and mixing device for the co-treatment of riverbed sediment and domestic sewage sludge, comprising a mixer body (1), characterized in that: The bottom of the mixer body (1) is provided with a discharge mechanism (2), and the upper end of the mixer body (1) is provided with a curing agent feeding mechanism (3); the mixer body (1) includes a mixing hopper (101), a mixing shaft (102), a first motor (103) and a control cabinet (104). The mixing shaft (102) is installed inside the mixing hopper (101) and rotatably connected to it. The first motor (103) is installed on the outside of the mixing hopper (101) to drive the mixing shaft (102). The curing agent feeding mechanism (3) includes a slide rail (301), a container (305), and a slide table (306). 6) Dosing pipe (3062) and fourth motor (308), the slide rail (301) is fixedly installed on the upper end face of the stirring bucket (101), the medicine holding hopper (305) is movably installed on the upper end of the slide rail (301), the slide table (306) is movably installed on the lower end of the medicine holding hopper (305), the dosing pipe (3062) is fixedly installed on the lower end face of the slide table (306), the dosing pipe (3062) is provided with a second auger rod (3063) rotatably connected inside the dosing pipe (3062), and the fourth motor (308) is fixedly installed on the dosing pipe (3062) to drive the second auger rod (3063).

2. The solidification and mixing equipment for the co-treatment of riverbed sediment and domestic sewage sludge as described in claim 1, characterized in that: The slide rail (301) is provided with a guide rod (302) that slides and engages with the medicine container (305). The lower end of the guide rod (302) is provided with a reciprocating screw (303) that is rotatably connected to the slide rail (301). The side end face of the medicine container (305) is provided with a screw hole (3055) that engages with the reciprocating screw (303). The side end face of the slide rail (301) is provided with a third motor (304) that drives the reciprocating screw (303).

3. The solidification and mixing equipment for the co-treatment of riverbed sediment and domestic sewage sludge as described in claim 1, characterized in that: The medicine container (305) is provided with a partition (3051), which divides the medicine container (305) into a first storage chamber (3052) and a second storage chamber (3053).

4. The solidification and mixing equipment for co-treatment of riverbed sediment and domestic sewage sludge as described in claim 1, characterized in that: The bottom of the inner end face of the medicine container (305) is provided with a sliding groove (3054), and the side end face of the slide table (306) is provided with a slider (3061) that cooperates with the sliding groove (3054).

5. The solidification and mixing equipment for the co-treatment of riverbed sediment and domestic sewage sludge as described in claim 1, characterized in that: The side end face of the medicine container (305) is provided with a telescopic cylinder (307), and the upper end face of the slide (306) is provided with a vertical plate (3064) that is fixedly connected to the output shaft of the telescopic cylinder (307).

6. The solidification and mixing equipment for the co-treatment of riverbed sediment and domestic sewage sludge as described in claim 4, characterized in that: The length of the slide (306) is twice the length of the slide groove (3054), and the dosing tube (3062) is located at the bottom center of the slide (306).

7. The solidification and mixing equipment for co-treatment of riverbed sediment and domestic sewage sludge as described in claim 1, characterized in that: The discharge mechanism (2) includes a discharge pipe (201), a first auger rod (203), and a second motor (202). The top of the discharge pipe (201) is provided with a feed inlet (204) that communicates with the bottom of the mixing bucket (101). The lower end face of the discharge pipe (201) is provided with a discharge port (205). The first auger rod (203) is installed inside the discharge pipe (201) and rotatably connected to it. The second motor (202) drives the first auger rod (203) at the bottom of the discharge pipe (201).

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