CN201263998Y - Machine for pulverizing and mixing sludge - Google Patents

Abstract

A sludge crushing mixer belongs to the field of environmental protection machinery, which includes a housing, a motor, a reducer, a coupling, and a bottom bracket. The housing is fixedly supported by a rotating shaft, which is connected to the reducer through a coupling. A spiral blade and a machete are installed on the top, and the machete is provided with a mounting hole to be fixed on the knife seat. The knife seat is connected and fixed on the rotating shaft, and the rotating shaft is supported on the shell of the crushing mixer through the bearing and the bearing seat. The casing, motor, and reducer are fixed on the bottom bracket of the crushing mixer, and the spiral blade conveys the material entering the hopper to the machete for crushing and mixing. The utility model has the advantages of simple structure, convenient operation and strong crushability, and the sludge is broken into very fine particles, so that the fermentation effect is good.

Description

sludge crushing mixer

technical field

The utility model belongs to an environmental protection machine and relates to a material crushing and mixing machine which can be used for urban sludge composting.

Background technique

At present, in the fermentation of sludge composting in my country, ribbon mixers or stirring mixing machines are generally used for sludge mixing when feeding. Due to the high viscosity of sludge, there is uneven mixing, poor crushing effect, and large pieces of sludge cannot be broken and loose. The problem of poor performance will lead to insufficient oxygen supply during fermentation and poor fermentation effect.

Utility model content

The purpose of this utility model is to provide a cutter and a crushing mixer that can be used for sludge treatment in a sewage plant. It uses a specially designed machete for crushing and mixing, and with the help of auxiliary materials, the sludge with high viscosity is mixed and crushed into The fine particles increase the gap of the sludge, which is conducive to sufficient oxygen supply and smooth aerobic fermentation.

In order to achieve the above object, the solution of the utility model is:

A sludge crushing mixer, which includes a housing, a motor, a reducer, a coupling, and a bottom bracket. The housing is fixedly supported by a rotating shaft, connected to the reducer through a coupling, and a helical blade is installed on the rotating shaft , a machete, the machete is provided with a mounting hole and fixed on the knife seat, and the knife seat is connected and fixed on the rotating shaft, and the machete is a scimitar of a horizontal rotary tiller.

Further, the rotating shaft is supported on the casing of the crushing mixer through the bearing and the bearing seat.

The housing, motor and reducer are fixed on the bottom bracket of the crushing mixer.

The helical blade is welded on the rotating shaft.

The machete is fixed on the knife seat by bolts, and the knife seat is welded on the rotating shaft.

The scimitar is distributed in a helical shape on the rotating shaft, and can be arranged as a single-head, double-head or multi-head spiral.

The discharge end of the rotating shaft is higher than the feeding end, and the rotating shaft forms an angle of 0-10 degrees with the ground. Due to the adoption of the above scheme, the beneficial effects of the utility model are: simple and reliable structure, high working efficiency, convenient operation, good mixing and crushing effects, which fully meet the requirements of granularity and porosity of materials during sludge fermentation, greatly Improve the fermentation effect.

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of the utility model.

Fig. 2 is a schematic cross-sectional structure diagram along line A-A in Fig. 1 .

1. Electric motor 2. Belt 3. Reducer 4. Coupling 5. Helical blade 6. Rotary shaft 7. First feed hopper 8. Second feed hopper 10. Shell 11. Lower hopper 12. Scimitar 13 .Knife seat 14.Bracket

Detailed ways

Below in conjunction with the embodiment shown in the accompanying drawings the utility model is further described.

As shown in Figure 1, what is installed on the rotating shaft 6 at the right end of the D place is a helical blade 5, and the helical blade 5 is directly welded on the rotating shaft 6, and what is installed on the rotating shaft 6 at the left end at the D place is a machete 12, and the machete 12 is provided with There are mounting holes, which can be installed and fixed on the knife seat 13 by bolts. The knife seat 13 is welded on the rotating shaft 6. The blades of the machete 12 are distributed in a helical shape on the shaft, and can be arranged as a single-head or double-head spiral. The rotating shaft 6 is supported on the crusher casing 10 by bearings and bearing seats, and the casing 10, the motor 1 and the reducer 3 are fixed on the bottom bracket 14 with bolts. When working, sludge is input from the first feeding hopper 7, wood chips, sludge after primary or secondary fermentation or other auxiliary materials are input from the second feeding hopper 8, and the mixing ratio of sludge and auxiliary materials is 2:1-3 : 1, their mixture moves to the left under the action of the screw blade 5, and reaches the left side of D, and the blade transports the material to the lower hopper 11 while mixing and crushing the material.

The blade that the utility model adopts is the machete of horizontal rotary cultivator. The scimitar has a long cutting edge, and the end is tilted to one side. When working, the blade rotates at a certain speed to form a milling process for the material-cutting, crushing and throwing, and a part of the thrown material hits the casing. was further broken. The blade has three functions of crushing, mixing and conveying.

The utility model mainly works by the spiral blade 5 and the machete 12, the helical blade 5 is used to complete the conveying work at the right end of the D point, and the machete 12 is used to complete the conveying, crushing and mixing from the D point to the discharge port. The power of the utility model is mainly transmitted from the motor 1 to the reducer 3 through the belt 2, and after deceleration is transmitted to the rotating shaft 6 through the coupling 4, which drives the machete 12 and the spiral blade 5 to rotate to complete the crushing, mixing and conveying work.

The utility model can further change the arrangement of the scimitar on the rotating shaft from a single-headed spiral to double-headed or multi-headed, as the crusher mixer is designed to have a rotating shaft length of 3m, and adopts a double-headed spiral with a pitch of 70mm. Arrange 8 scimitars on each pitch of a single spiral, a total of 80 scimitars. Due to the increase in the number of scimitars, the arrangement is more uniform, which can improve the crushing and mixing effect; or increase the length of the rotating shaft or reduce the distance between the scimitars. The distance between them can improve the working effect; the working effect can also be affected by changing the rotation number of the cutter shaft. The specific gravity of the material is large, and the number of rotations is correspondingly reduced; the specific gravity of the material is small, and the number of rotations is correspondingly increased; The 0-10 degree angle with the ground can prolong the crushing and mixing time of materials in the shell, thereby improving the working effect.

Sludge has a high water content, high viscosity, and high density, while the density of auxiliary materials is very small compared with sludge. In the past sludge mixer, the sludge after mixing is lumpy, with a large agglomeration volume and an average diameter of 15-40mm. , and it is easy to re-bond together after the cloth reaches the fermentation chamber, the sludge crushing effect is poor, the sludge and auxiliary materials cannot be fully mixed, and the porosity is poor, which will lead to the failure of aerobic fermentation; and after being mixed and crushed by the utility model mixer The sludge is in the form of fine particles with a diameter of 2-5 mm. The outer surface of the particles is covered with auxiliary materials. The mixing effect is very good. The particles are no longer easy to bond, the porosity is good, and the fermentation effect is good.

The above description of the embodiments is for those of ordinary skill in the technical field to understand and apply the utility model. It is obvious that those skilled in the art can easily make various modifications to these embodiments, and apply the general principles described here to other embodiments without creative efforts. Therefore, the utility model is not limited to the embodiments here, and the improvements and modifications made by those skilled in the art according to the disclosure of the utility model should be within the protection scope of the utility model.

Claims (7)

1. A sludge crushing mixer, which includes a housing, a motor, a reducer, a coupling, and a bottom bracket, and is characterized in that: the housing is fixedly supported by a rotating shaft, which is connected to the reducer through a coupling and rotates A helical blade and a machete are installed on the shaft, and the machete is provided with a mounting hole to be fixed on the knife seat, and the knife seat is connected and fixed on the rotating shaft, and the machete is a scimitar of a horizontal rotary tiller. 2. The sludge crushing mixer according to claim 1, characterized in that: the rotating shaft is supported on the casing of the crushing mixer through bearings and bearing seats. 3. The sludge crushing mixer according to claim 1, characterized in that: the housing, the motor, and the reducer are fixed on the bottom bracket of the crushing mixer. 4. The sludge crushing mixer according to claim 1, characterized in that: the spiral blade is welded on the rotating shaft. 5. The sludge crushing mixer according to claim 1, characterized in that: the machete is fixed on the knife seat by bolts, and the knife seat is welded on the rotating shaft. 6. The sludge crushing mixer according to claim 1, characterized in that: the scimitar is distributed in a helical shape on the rotating shaft, and can be arranged as a single-head, double-head or multi-head spiral. 7. The sludge crushing mixer according to claim 1, characterized in that: the discharge end of the rotating shaft is higher than the feeding end, and the rotating shaft forms an angle of 0-10 degrees with the ground.

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