CN223879614U - A sludge modification device - Google Patents

Abstract

This utility model discloses a sludge modification device, belonging to the field of sludge dewatering and modification technology, including a tank body, a stirring shaft, and a drive device. The stirring shaft is a dual-shaft structure, equipped with a crushing element, a conveying element, and a remixing element. The crushing element crushes large pieces of sludge, the conveying element pushes the mixture forward, and the remixing element returns incompletely mixed material to the mixing zone to extend the mixing time. The drive device drives the stirring shaft to rotate via a power transmission mechanism, achieving uniform mixing of sludge with the skeleton agent and liquid reagent, while preventing sludge accumulation or blockage in the tank. This utility model has a reasonable structural design, integrating crushing, mixing, and conveying functions, which not only enhances the fluidity and uniformity of the sludge but also significantly improves modification efficiency, dewatering performance, and compressive strength. The equipment is easy to operate and runs stably, providing an efficient pretreatment method for subsequent dewatering and disposal processes, and is suitable for various sludge modification treatment scenarios.

Description

Sludge modification device

Technical Field

The utility model relates to the field of sludge dewatering environmental protection equipment, is used for mixing sludge and related medicaments, and particularly relates to a sludge modification device.

Background

At present, along with the increase of sewage treatment demands, sludge dewatering and modification treatment gradually become an important link in the field of environmental protection. The sludge contains high proportion of water and organic substances, and needs to be modified by adding a medicament, so that the dehydration performance and mechanical strength of the sludge are improved, and the subsequent treatment requirements are met. For this reason, various sludge conditioning and modifying apparatuses are widely used.

The prior art CN222119049U discloses a sludge conditioning and modifying device, which comprises a treatment box, a rotating motor, a stirring shaft, a baffle plate, a movable driving mechanism and an adjusting mechanism. The device adjusts the size of the treatment space by arranging the movable partition plate in the treatment box so as to adapt to the treatment requirements of sludge from different sources. Meanwhile, the movable ring on the stirring shaft and the blades realize the adjustment of the positions of the blades through the linkage action of the electric push rod and the springs, so that the stirring uniformity is ensured.

However, the prior art still has the following drawbacks and deficiencies:

The structure complexity is high, the adjusting mechanism of the existing device depends on the mutual matching of a plurality of precise components (such as an electric push rod, a spring, an arc abutting plate and the like), the structure is complex, the manufacturing cost is high, the maintenance is difficult, and the reliability of the device is difficult to guarantee.

The treatment effect is limited in that the mode of adjusting the size of the treatment space by moving the partition plates can adapt to sludge from different sources, but even mixing and back mixing of materials cannot be effectively realized in the dynamic stirring process, so that the modification effect is poor, and the efficiency of subsequent dehydration treatment is affected.

The existing device only depends on the blades to stir, lacks special crushing function, has low stirring efficiency when facing to the large-block clustered sludge, and even can cause uneven stress of the blades or jamming of a stirring shaft.

The prior device does not fully consider the conveying requirement of the sludge, the sludge after stirring is required to be additionally treated and conveyed, and the connection difficulty and the treatment time between equipment are increased.

Disclosure of utility model

The utility model aims to solve the problems of uneven stirring, weak crushing capability, high structural complexity, low conveying efficiency and the like in the actual use of the prior art, and provides a novel stirring shaft sludge modifying device which remarkably improves the mixing uniformity of sludge and additives, the processing capability of bulk materials, the conveying and mixing integration and the dehydration performance by optimizing the functional design and the device structure of a stirring shaft.

In order to solve the problems, the utility model provides a sludge modification device which comprises a tank body, a stirring shaft and a driving device, wherein the tank body is provided with a feed inlet, a discharge outlet and a plurality of dosing ports,

The stirring shaft is of a double-shaft structure, and is provided with a crushing element for crushing and back-mixing materials, and a conveying element and a back-mixing element for pushing and back-mixing the materials respectively;

The driving device drives the stirring shaft to rotate through the power transmission mechanism, so that sludge and additives are uniformly mixed in the tank body, and the mixed materials are conveyed to the discharge port through the conveying element.

Preferably, the top of the tank body is provided with a cover plate body which can be movably connected, and the cover plate body is movably provided with a movable window.

Preferably, the groove body main body is provided with a cover plate hasp, the cover plate hasp is movably connected with the cover plate main body, the movable window is connected with the cover plate main body through a hinge, the device is provided with the movably connected cover plate main body, and the movable window and the medicine adding port are designed, so that the observation and operation during the running of the device are convenient, the cleaning and maintenance can be conveniently carried out, and the operation convenience of the device is improved.

Preferably, the crushing element is in a claw-shaped structure and is arranged at the front section of the stirring shaft and is used for crushing massive materials in the sludge.

Preferably, the conveying element is in a helical blade structure and is arranged on the outer layer of the stirring shaft and used for pushing the mixture to be conveyed forward.

Preferably, the back mixing element is in a reverse spiral blade structure and is arranged on the inner layer of the stirring shaft and used for returning the incompletely mixed materials to the stirring zone.

Preferably, the driving device comprises a driving motor speed reducer, the power transmission mechanism comprises a bearing and a driving gear, the driving motor speed reducer drives the stirring shaft to rotate, the shaft head of the stirring shaft rotates under the action of the bearing, the driving gear is arranged on the other shaft head of the stirring shaft, and the driving gear drives the driven stirring shaft to rotate under the rotation action of the shaft head, so that the double stirring shafts rotate simultaneously.

Preferably, the dosing port comprises a framework agent dosing port and a liquid agent dosing port, the motor speed reducer is arranged in a motor mounting box, and the motor mounting box is fixedly arranged on a side plate of the tank body.

Preferably, the support plates are arranged on two sides of the lower end of the tank body, the reinforcing ribs are arranged at the center of the lower end of the tank body, and the support base and the reinforcing ribs at the bottom of the tank body are designed, so that the overall structural strength of the device is improved, and the stability of the device in long-term operation is ensured.

Preferably, the crushing element, the conveying element and the back mixing element are welded to the stirring shaft through support rods.

Compared with the prior art, the utility model has the beneficial technical effects that:

According to the utility model, the crushing element, the conveying element and the back mixing element are arranged on the stirring shaft, so that the problem of uneven stirring in the prior art is effectively solved, the crushing element can primarily crush the agglomerated bulk materials in the sludge, the conveying element pushes the mixture to be conveyed forward, and the back mixing element further returns the materials which are not completely mixed to the stirring area for remixing, so that the full and uniform mixing of the sludge and the additive is ensured, and the modifying effect is remarkably improved.

The utility model adopts the claw-shaped crushing element, is specially used for crushing and processing the bulk materials in the sludge, so that the clamping stagnation phenomenon is avoided in the stirring process, the running reliability of equipment is improved, and the problem of the reduction of the mixing effect caused by the uneven size of the materials is avoided.

The stirring shaft is of a double-shaft structure, and the power transmission mechanism of the bearing and the gear is adopted, so that the whole structure of the equipment is simplified, synchronous rotation of the double stirring shafts is guaranteed, and compared with a complex spring and push rod linkage mechanism in the prior art, the device is simpler and more reliable in structure, and the manufacturing cost and the subsequent maintenance difficulty are reduced.

According to the utility model, through the spiral blades of the conveying element, the mixed sludge can be conveyed to the discharge port while the materials are fully mixed, no additional conveying equipment is needed, and the overall efficiency of sludge treatment is improved. By prolonging the mixing time of materials in the stirring shaft and stirring for multiple times by the back mixing element, the full mixing of the sludge and the additive obviously improves the dehydration performance and the compression resistance of the sludge, and provides a better modification basis for the subsequent high-pressure dehydration treatment.

Drawings

FIG. 1 is a schematic view of the whole of the sludge reforming apparatus of the present utility model.

FIG. 2 is a schematic view showing the structure of the sludge reforming apparatus according to the present utility model in the forward direction.

Fig. 3 is a schematic plan view of the sludge reforming apparatus according to the present utility model.

Fig. 4 is a schematic structural view of the stirring shaft and the crushing element, the conveying element and the back mixing element.

In the figure, the device comprises a 1-tank body, a 2-stirring shaft, a 3-driving device, a 4-feeding port, a 5-discharging port, a 6-crushing element, a 7-conveying element, an 8-back mixing element, a 9-power transmission mechanism, a 10-cover plate body, a 11-movable window, a 12-cover plate hasp, a 13-reinforcing rib, a 14-supporting plate, a 15-liquid medicament feeding port, a 16-framework medicament feeding port, a 31-driving motor speed reducer, a 32-motor mounting box, a 33-supporting rod, a 91-bearing and a 92-driving gear.

Detailed Description

The utility model is further illustrated by the following figures and examples.

As shown in fig. 1-4, the utility model provides a novel stirring shaft sludge modification device, which comprises a tank body 1, a cover plate body 10, a driving device 3 and a stirring shaft 2, wherein the tank body 1 is provided with the cover plate hasp 12, the cover plate hasp 12 can be movably connected with the cover plate body 10, the tank body 1 is provided with a supporting plate 14, a reinforcing rib 13 and a discharge hole 5, the supporting plate 14 and the reinforcing rib 13 play a reinforcing role on the tank body 1, so that the whole device is firmer, the cover plate body 10 is provided with a movable window 11, the movable window 11 is connected with the cover plate body 21 by using a hinge, the cover plate body 10 is convenient to overhaul and observe, a framework agent dosing hole 16, a liquid agent dosing hole 15 and a sludge feeding hole 4 are formed in the cover plate body 10, and the framework agent dosing hole 16, the liquid agent dosing hole 15 and the sludge feeding hole 4 and the cover plate body 10 are integrally arranged and can be detached.

The motor mounting box 32 of drive arrangement 3 is installed in cell body main part 1 curb plate, motor mounting box 32 is used for installing driving motor speed reducer 31, driving motor speed reducer 31 drives (mixing) shaft 2 and rotates, (mixing) shaft 2 spindle nose rotates under the effect of the bearing 91 of power transmission mechanism 9, the drive gear 92 is installed to another head spindle nose of (mixing) shaft 2, drive gear 92 drives driven (mixing) shaft 2 rotatory under the spindle nose rotatory effect for two (mixing) shafts rotate simultaneously. The stirring shaft 2 is provided with three elements, including crushing element 6, conveying element 7, back mixing element 8, crushing element 6, conveying element 7, back mixing element 8 weld in the stirring shaft 2 under the effect of bracing piece 33, crushing element 6 designs to claw structure, better carries out crushing mixing to mud.

The sludge enters from the feed inlet 4 of the sludge, a certain proportion of framework agent and liquid agent are added from the framework agent adding port 16 and the liquid agent adding port 15 respectively, the stirring shaft 2 is driven to work under the action of the driving motor reducer 31 of the driving device 3, the crushing element 6 on the stirring shaft 2 acts on the sludge firstly, the massive and agglomerated sludge in the fed sludge is crushed by the crushing return screw 6 preferentially, so that the subsequent mixing is more uniform, meanwhile, the crushing return screw 6 can prevent part of the sludge from being accumulated at the corners of the side plates all the time, the sludge and the added agent are mixed continuously under the action of the conveying element 7 and the back mixing element 8, the mixed sludge is conveyed continuously to the discharge port 15 by the conveying element 7 at the outer layer, the back mixing element 8 at the inner layer carries out the back mixing action on part of the sludge which is not completely mixed inside, the sludge is subjected to continuous mixing modification, and the dewatering performance and the compression resistance of the sludge are prolonged.

In order to facilitate understanding of the above technical solutions of the present utility model, the following describes the above technical solutions of the present utility model in detail through a specific usage manner.

The concrete working process is that firstly, the sludge to be treated is evenly put into the tank body 1 through the feed inlet 4, and meanwhile, the framework agent and the liquid agent with preset proportion are respectively put through the framework agent adding port 16 and the liquid agent adding port 15, and enter the stirring area together with the sludge. The stirring shaft 2 is driven to work under the action of the driving motor speed reducer 31 of the driving device 3, the stirring shaft 2 rotates to drive the claw-shaped crushing element 6 to act on sludge, large agglomerated blocks in the fed sludge are crushed by the crushing element 6 preferentially, the large agglomerated blocks are crushed into smaller particles, the particles of the sludge are distributed more uniformly, subsequent mixing is also enabled to be more uniform, meanwhile, the condition of uneven stirring caused by aggregation of large materials is avoided, meanwhile, the crushing element 6 can prevent part of sludge from being accumulated at the corners of the side plates all the time, the sludge and the added medicament are continuously mixed under the action of the outer layer conveying element 7 and the inner layer back mixing element 8, the outer layer conveying element 7 continuously conveys the mixed sludge to the discharge hole 5, the inner layer back mixing element 8 returns part of sludge which is not completely mixed in the inner layer back mixing element 8 to the stirring area, the sludge is continuously mixed and modified under the action of the back mixing element 8, and the uniform mixing time of the sludge and the additive is further ensured. So as to improve the dehydration performance and compression resistance of the sludge. And (3) sludge discharge, namely discharging the mixed sludge through a discharge port 5, and conveying the sludge to subsequent treatment equipment for dehydration or other process treatment.

In the running process, the mixing state of the sludge and the additive can be observed in real time through the movable window 11. If the feeding is insufficient or the mixing is abnormal, the medicine can be supplemented or regulated at any time through the medicine adding port.

After the use is finished, whether the inside of the device is uncleaned residual sludge is observed through the movable window 11, and the inside of the tank body is conveniently cleaned through the movable connection design of the cover plate main body 10.

The utility model realizes the integrated treatment of crushing, mixing, back mixing and conveying of the sludge in the whole process from feeding to discharging by the claw-shaped design of the crushing element 6, the spiral blade of the conveying element 7 and the reverse spiral structure of the back mixing element 8. Not only remarkably improves the mixing efficiency of the sludge and the additive, but also improves the running reliability and the maintenance convenience of the equipment, and provides a more efficient pretreatment means for the subsequent sludge dehydration and treatment.

The stirring shaft 2 is of a double-shaft structure, and adopts a power transmission mechanism of a bearing and a gear, so that the whole structure of the equipment is simplified, synchronous rotation of the double stirring shafts is guaranteed, and compared with a complex spring and push rod linkage mechanism in the prior art, the device is simpler and more reliable in structure, and the manufacturing cost and the subsequent maintenance difficulty are reduced.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Unless specifically stated or limited otherwise, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, or indirectly connected via an intervening medium, or may be in communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It should be noted that in the present utility model, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

The foregoing is only a specific embodiment of the utility model to enable those skilled in the art to understand or practice the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features of the utility model described herein.

Claims (10)

1. The utility model provides a mud modifying apparatus, includes cell body main part (1), (mixing) shaft (2), drive arrangement (3), be equipped with feed inlet (4), discharge gate (5) and a plurality of charge mouth on cell body main part (1), its characterized in that:

The stirring shaft (2) is of a double-shaft structure, and is provided with a crushing element (6) for crushing and back-mixing materials, a conveying element (7) and a back-mixing element (8) for pushing and back-mixing the materials respectively;

The driving device (3) drives the stirring shaft (2) to rotate through the power transmission mechanism (9), so that the sludge and the additive are uniformly mixed in the tank body (1), and the mixed materials are conveyed to the discharge port (5) through the conveying element (7).

2. The sludge modification device according to claim 1, wherein a cover plate main body (10) capable of being movably connected is arranged at the top of the tank main body (1), and a movable window (11) is movably arranged on the cover plate main body (10).

3. The sludge modification device according to claim 2, wherein the tank body (1) is provided with a cover plate hasp (12), the cover plate hasp (12) is movably connected with the cover plate body (10), and the movable window (11) is connected with the cover plate body (10) by using a hinge.

4. Sludge modification device according to claim 1, characterized in that the crushing element (6) is of claw-like structure, arranged in the front section of the stirring shaft (2), for crushing bulk material in the sludge.

5. Sludge modification device according to claim 1, characterized in that the conveying element (7) is of helical blade structure, arranged on the outer layer of the stirring shaft (2), for pushing the mixture forward.

6. Sludge modification device according to claim 1, characterized in that the back-mixing element (8) is of a counter-helical blade structure, arranged in the inner layer of the stirring shaft (2), for returning unmixed material to the stirring zone.

7. The sludge modification device according to claim 1, wherein the driving device (3) comprises a driving motor reducer (31), the power transmission mechanism (9) comprises a bearing (91) and a driving gear (92), the driving motor reducer (31) drives the stirring shaft (2) to rotate, a shaft head of the stirring shaft (2) rotates under the action of the bearing (91), a driving gear (92) is arranged on the other shaft head of the stirring shaft (2), and the driving gear (92) drives the driven stirring shaft to rotate under the rotation action of the shaft head, so that the double stirring shafts rotate simultaneously.

8. The sludge modification device according to claim 7, wherein the dosing port comprises a framework agent dosing port (16) and a liquid agent dosing port (15), a motor reducer (31) is installed in a motor installation box (32), and the motor installation box (32) is fixedly installed on a side plate of the tank body (1).

9. The sludge modification device according to claim 1, wherein support plates (14) are arranged on two sides of the lower end of the tank body (1), and a reinforcing rib (13) is arranged in the center of the lower end of the tank body (1).

10. Sludge modification device according to claim 1, characterized in that the crushing element (6), the conveying element (7), the back-mixing element (8) are welded to the stirring shaft (2) via support rods (33).