CN111482252A - A smash mix device for handling high wet waste soil - Google Patents

Abstract

The invention relates to a crushing and mixing device for processing high-humidity waste soil, comprising a hopper, a hollow tube and a crushing box. There is a chipping mechanism inside, and a conveyor belt is arranged below the discharge port of the pulverizing box; a feeding screw is arranged in the hollow tube, one end of the hollow tube is provided with a driving part, and the other end is connected with the feeding port of the pulverizing box. There is a hollow tube feeding port directly below the hopper outlet; the advantage is that: through the cooperation of the feeding screw and the chipping mechanism, the waste soil can be effectively pulverized, avoiding sticking, and the particle size of the finished product meets the construction requirements; For the feeding amount, the automatic meter can deliver the curing agent on demand to realize the proportional supply of the curing agent; a pair of rollers are set in the hopper, and a pressing sheet is set on the rollers to actively press the waste soil into the hollow tube, which can effectively prevent the waste soil from being trapped in the hollow tube. The bonding in the hopper improves the smoothness of blanking.

Description

Crushing and mixing device for processing high-moisture waste soil

technical field

The invention relates to the technical field of waste mud and urban foundation pit excavation waste soil treatment, in particular to a crushing and mixing device for processing high-humidity waste soil.

Background technique

The increasingly stringent environmental protection inspectors and environmental protection standards have led to the shutdown of a large number of mines, and the lack of procurement of subgrade fillers such as slag and aggregate has become a common phenomenon in the current project, which has seriously affected the progress of the project. Due to this phenomenon of supply and demand, a large number of unqualified materials enter the market, making it difficult for the construction quality of the roadbed to meet the design requirements and affecting the construction quality; at the same time, due to the imbalance of supply and demand, the prices of roadbed fillers such as slag and aggregate have been continuously increased. Rising, making the project cost generally rise.

On the other hand, with the continuous advancement of the urbanization process in recent years, the waste mud dewatering soil generated by various constructions and the urban construction spoils such as foundation pit excavation have nowhere to be stacked or the price of stacking and consumption is too high, which brings a lot to the government and construction enterprises. A lot of trouble came. How to generate huge economic value from urban construction waste soil has become a difficult problem at present.

In the process of recycling waste mud, the mud needs to be compressed and dehydrated into mud cake first. However, for general crushing devices, the moisture content of mud cake and foundation pit excavation spoil belongs to the category of high humidity, which is prone to sticking during the crushing process. Connecting equipment, unsatisfactory crushing particle size, etc., resulting in a decrease in the yield of final qualified products.

Based on this, the case is hereby proposed.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a crushing and mixing device for processing high-humidity waste soil, so as to improve the regeneration efficiency of waste mud.

In order to achieve the above object, technical scheme of the present invention is as follows:

A pulverizing and mixing device for processing high-humidity waste soil, comprising a hopper, a hollow tube and a pulverizing box, the pulverizing box is provided with a pulverizing box feeding port, a pulverizing box discharging port and a curing agent inlet, and the pulverizing box is provided with There is a chipping mechanism, and a conveyor belt is arranged below the discharge port of the crushing box; a feeding screw is arranged in the hollow tube, one end of the hollow tube is provided with a driving part for driving the feeding screw, and the other end is connected with the feeding port of the crushing box , the side wall of the hollow tube is provided with a hollow tube inlet located just below the outlet of the hopper.

Further, the chipping mechanism includes a second driving part fixed on the pulverizing box and a rotating shaft, and the rotating shaft is arranged with chips in the circumferential direction.

Further, the hopper is provided with two horizontally opposite and relatively rotating blanking rollers, the hopper is provided with a driving part 3 for driving the blanking rollers, and the outer walls of the blanking rollers are distributed with pressing sheets.

Further, an automatic meter is included, and the output end of the automatic meter is connected with the curing agent inlet.

The advantages of the present invention are:

1. Through the cooperation of the feeding screw and the chipping mechanism, the large-sized waste soil can be effectively crushed to avoid sticking, and the particle size of the finished product meets the construction requirements;

2. By calculating the feeding amount of the feeding screw, the automatic meter can deliver the curing agent on demand to realize the proportional supply of the curing agent;

3. A pair of rollers are arranged in the hopper, and a pressing sheet is arranged on the roller to actively press the waste soil into the hollow tube, which can effectively avoid the adhesion of the waste soil in the hopper and improve the smoothness of cutting.

Description of drawings

1 is a schematic structural diagram of the present invention in an embodiment;

Fig. 2 is the coordination schematic diagram of the feeding screw and the chipping mechanism in the embodiment;

3 is a schematic diagram of the cooperation of two feeding rollers in the embodiment;

Fig. 4 is the three-dimensional structure schematic diagram of the hollow tube in the embodiment;

Label description

Hopper 1, hollow tube 2, crushing box 3, crushing box inlet 4, crushing box outlet 5, curing agent inlet 6, flakes 7, rotating shaft 8, transmission belt, 9, feeding screw 10, automatic meter 11, Unloading roller 12, tablet pressing 13, hollow tube inlet 14.

Detailed ways

The present invention will be described in further detail below in conjunction with the embodiments.

As shown in Figures 1 to 4, the present invention proposes a crushing and mixing device for processing high-humidity waste soil, comprising a hopper 1, a hollow tube 2 and a crushing box 3, and the crushing box 3 is provided with a crushing box for feeding materials Port 4, crushing box outlet 5 and curing agent inlet 6, crushing box 3 is provided with a chip 7 mechanism, and below the crushing box outlet 5 is provided with a conveyor belt 9; the hollow tube 2 is provided with a feeding screw 10 One end of the hollow tube 2 is provided with a driving part 1 for driving the feeding screw 10, and the other end is connected with the feeding port 4 of the crushing box. 14. In this embodiment, the length of the feeding screw 10 is smaller than the length of the hollow tube 2. When the feeding screw 10 sends out the mud, it will also be moved for a certain distance in the hollow tube 2. Under the action of the tube wall, the mud is moved out of the hollow tube. 2 is block-shaped, so that the shavings 7 mechanism shavings 7.

Among them, the shaving 7 mechanism includes a driving part 2 fixed on the crushing box 3 and a rotating shaft 8. The rotating shaft 8 is arranged with shavings 7 in the circumferential direction. When the mud is sent out from the hollow tube 2, it is immediately cut off by the shavings 7. , by adjusting the rotational speed of the rotating shaft 8, when the speed of the shavings 7 is fast enough, the particle size of the mud that is cut off can be very small (although the waste soil has a certain viscosity, it is still flaky when it is not cut off, and it is flaky under gravity Action and shavings 7 blows will be close to crushing).

Due to the viscosity of the waste soil, it is easy to stick in the hopper 1 when the material is unloaded in the hopper 1. In the prior art, a vibrating machine is added to the side wall of the hopper 1 to promote the unloading through vibration, but such unloading is actually still Relying on the gravity of waste soil for passive cutting, the application effect is not good. In order to solve this defect, the hopper 1 in this embodiment is provided with two blanking rollers 12 which are arranged horizontally opposite to each other and rotate relative to each other. There are pressing sheets 13 distributed on the outer wall of the . When the blanking roller 12 rotates, the pressing sheet 13 on it presses the waste soil into the hopper 1 to realize active blanking (as shown in Fig. 3, the blades on the two blanking rollers 12 need to be dislocated). While pressing down, the two unloading rollers 12 can also squeeze the waste soil, so that the waste soil has been crushed to a certain extent when entering the hollow tube 2, which is convenient for feeding by the feeding screw 10.

When the rotation speed of the feeding screw 10 is determined, the amount of mud extruded from the hollow tube 2 per unit time is determined. Therefore, the embodiment also includes an automatic meter 11. The output end of the automatic meter 11 is connected to the curing agent inlet 6. Because The amount of mud produced by the hollow tube 2 is determined, and the automatic meter 11 can add curing agent to the crushing box 3 in proportion, so that the crushed mud particles and the curing agent can be combined according to the designed proportion to form the final qualified product. The finished products coming out of the discharge port 5 of the crushing box can be sent to the next process or warehouse for storage through the conveyor belt 9 .

The above embodiments are only used to illustrate the concept of the present invention, but not to limit the protection of the rights of the present invention. Any non-substantial changes to the present invention by using this concept should fall within the protection scope of the present invention.

Claims (4)

1. The utility model provides a smash mix device for handling high wet waste soil which characterized in that: the crushing box is provided with a crushing box feeding port, a crushing box discharging port and a curing agent inlet, a flaking mechanism is arranged in the crushing box, and a conveying belt is arranged below the crushing box discharging port; the feeding screw is arranged in the hollow pipe, one end of the hollow pipe is provided with a first driving part for driving the feeding screw, the other end of the hollow pipe is connected with the feeding port of the crushing box, and the side wall of the hollow pipe is provided with a hollow pipe feeding port positioned right below the outlet of the hopper.

2. A mill mixer apparatus for treating high moisture waste soil according to claim 1, wherein: the flaking mechanism is including fixing drive division two and the pivot on smashing the case, and the circumference has arranged the flaking in the pivot.

3. A mill mixer apparatus for treating high moisture waste soil according to claim 1, wherein: two discharging rollers which are horizontally arranged oppositely and rotate oppositely are arranged in the hopper, a driving part III for driving the discharging rollers is arranged on the hopper, and pressing sheets are distributed on the outer wall of each discharging roller.

4. A mill mixer apparatus for treating high moisture waste soil according to claim 1, wherein: comprises an automatic metering device, wherein the output end of the automatic metering device is connected with a curing agent inlet.

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