Sludge modification device

Abstract

The utility model discloses a sludge modification device, which belongs to the technical field of sludge dewatering and modification treatment and comprises a tank body, a stirring shaft and a driving device. The stirring shaft is of a double-shaft structure, a crushing element, a conveying element and a back-mixing element are arranged on the stirring shaft, the crushing element is used for crushing massive sludge, the conveying element pushes a mixture to be conveyed forwards, and the back-mixing element returns materials which are not completely mixed to the stirring area so as to prolong the mixing time. The driving device drives the stirring shaft to rotate through the power transmission mechanism, uniform mixing of the sludge, the skeleton agent and the liquid agent is achieved, and meanwhile the sludge is prevented from being accumulated or blocked in the tank body. The device is reasonable in structural design, has an integrated function of crushing, mixing and conveying, not only enhances the fluidity and uniformity of sludge, but also remarkably improves the modification efficiency, and improves the dehydration performance and compression resistance of the sludge. The equipment is simple and convenient to operate and stable in operation, provides an efficient pretreatment means for subsequent dehydration and treatment processes, and is suitable for various sludge modification treatment scenes.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of sludge dewatering environmental protection equipment for the mixing of sludge and related reagents, and particularly relates to a sludge modification device. BACKGROUND

[0002] At present, with the increasing demand for sewage treatment, sludge dewatering and modification treatment gradually become an important link in the field of environmental protection. The sludge contains a high proportion of water and organic matter, which needs to be modified by adding reagents to improve the dewatering performance and mechanical strength of the sludge to meet the subsequent processing requirements. For this reason, various sludge conditioning and modification equipment are widely used.

[0003] The prior art CN222119049U discloses a sludge conditioning and modification device, which comprises a treatment box, a rotating motor, a stirring shaft, a partition, a moving driving mechanism and an adjusting mechanism. The device adjusts the size of the treatment space by setting a movable partition in the treatment box to adapt to the processing needs of sludge from different sources. At the same time, the movement of the moving ring and the blade on the stirring shaft is realized through the linkage action of the electric push rod and the spring, so as to ensure the uniformity of stirring.

[0004] However, the prior art still has the following defects and deficiencies:

[0005] High structural complexity: the adjusting mechanism of the existing device relies on the cooperation of multiple precise components (such as electric push rods, springs, arc-shaped abutting plates, etc.), which has a complex structure, high manufacturing cost, difficult maintenance and difficult to guarantee the reliability of the device.

[0006] Limited processing effect: although the method of adjusting the size of the treatment space by moving the partition can adapt to sludge from different sources, it cannot effectively realize the uniform mixing and back mixing of materials during dynamic stirring, resulting in poor modification effect and affecting the efficiency of subsequent dewatering treatment.

[0007] Insufficient processing capacity for large materials: the existing device only relies on the blade for stirring and lacks a special crushing function. When facing large and clumped sludge, the stirring efficiency is low, and even the blade may be unevenly stressed or the stirring shaft may be stuck.

[0008] Lack of transmission performance: the existing device does not fully consider the conveying needs of sludge. The sludge after stirring needs to be handled and conveyed separately, which increases the difficulty of connecting devices and processing time. UTILITY MODEL CONTENTS

[0009] The utility model wants to solve the problem that prior art exists in actual use uneven stirring, weak crushing capacity, high structural complexity and low conveying efficiency, provides a new type stirring shaft sludge modification device, through optimizing the function design and device structure of stirring shaft, the mixing uniformity of sludge and additive and the processing capacity of large block material and conveying and mixing integration, dehydration performance promotion are improved.

[0010] In order to solve the above problems, the utility model provides a kind of sludge modification device, including tank body, stirring shaft, driving device, the tank is equipped with feed inlet, discharge outlet and multiple dosing ports,

[0011] The stirring shaft is double-shaft structure, is provided with crushing element for crushing and back mixing material on it, and conveying element and back mixing element for pushing and back mixing material respectively;

[0012] The driving device rotates the stirring shaft by power transmission mechanism, promotes sludge and additive to be uniformly mixed in tank body, and conveying element is used to convey mixed material to discharge outlet.

[0013] As preferably, the tank body top is equipped with the movable connection cover plate body, and the movable window is movably arranged on the cover plate body.

[0014] As preferably, the tank body is equipped with cover plate buckle, the cover plate buckle is movably connected with cover plate body, and the movable window is connected with cover plate body using hinge, the device is equipped with movable connection cover plate body, and is designed with movable window and dosing port, not only convenient for observation and operation when equipment runs, but also convenient for cleaning and maintenance, improve the operation convenience of device.

[0015] As preferably, the crushing element is claw structure, and is arranged in the front section of the stirring shaft, for crushing large block material in sludge.

[0016] As preferably, the conveying element is spiral blade structure, and is arranged in the outer layer of the stirring shaft, for pushing mixed material forward.

[0017] As preferably, the back mixing element is reverse spiral blade structure, and is arranged in the inner layer of the stirring shaft, for returning un-mixed material to stirring area.

[0018] As preferably, the driving device includes driving motor speed reducer, the power transmission mechanism includes bearing and driving gear, the driving motor speed reducer drives stirring shaft to rotate, the stirring shaft shaft head rotates under the action of bearing, the other end of the stirring shaft shaft head installs driving gear, the driving gear rotates under the action of shaft head, so that double stirring shaft rotates simultaneously.

[0019] As preferably, the medicine adding port comprises a skeleton medicine adding port and a liquid medicine adding port, and the motor reducer is installed in the motor installation box which is fixedly installed on the side plate of the groove body.

[0020] As preferably, the groove body lower end is provided with support plates on both sides, and a reinforcing rib is arranged at the center of the groove body lower end, and the design of the support seat on the groove body bottom and the reinforcing rib improves the overall structural strength of the equipment and ensures the stability of the device during long-term operation.

[0021] As preferably, the crushing element, the conveying element and the back mixing element are welded on the stirring shaft through the support rod.

[0022] Compared with the prior art, the present application has the following beneficial technical effects:

[0023] The combination structure of the crushing element, the conveying element and the back mixing element arranged on the stirring shaft effectively solves the problem of uneven stirring in the prior art, the crushing element can preliminarily crush large block materials in the sludge, the conveying element pushes the mixture forward, and the back mixing element further returns the incompletely mixed materials to the stirring area for re-mixing, so as to ensure the full and uniform mixing of the sludge and the additive and significantly improve the modification effect.

[0024] The claw-shaped crushing element is specially used for crushing the large block materials in the sludge, so that there is no jamming phenomenon in the stirring process, the reliability of the equipment operation is improved, and the problem of reduced mixing effect caused by uneven material size is avoided.

[0025] The stirring shaft of the present application is a double-shaft structure, adopts a bearing and gear power transmission mechanism, simplifies the overall structure of the equipment, and at the same time ensures the synchronous rotation of the double stirring shafts, compared with the complex spring and push rod linkage mechanism in the prior art, the structure of the present application is simpler and more reliable, and the manufacturing cost and the difficulty of subsequent maintenance are reduced.

[0026] The spiral blade of the conveying element can convey the mixed sludge to the discharge port while realizing the full mixing of the materials, without the need for additional conveying equipment, and the overall efficiency of sludge treatment is improved. By prolonging the mixing time of the materials in the stirring shaft and mixing the materials multiple times through the back mixing element, the full mixing of the sludge and the additive significantly improves the dewatering performance and the compression resistance of the sludge, and provides a better modification basis for subsequent high-pressure dewatering treatment. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is an overall schematic view of the sludge modification device.

[0028] Figure 2The utility model discloses a positive direction's structure schematic drawing of sludge modification device.

[0029] Figure 3 The utility model discloses a top direction's structure schematic drawing of sludge modification device.

[0030] Figure 4 It is the structure schematic drawing of stirring shaft and broken element, conveying element and back mixing element.

[0031] In the drawing: 1 - tank body, 2 - stirring shaft, 3 - drive device, 4 - feed inlet, 5 - discharge port, 6 - broken element, 7 - conveying element, 8 - back mixing element, 9 - power transmission mechanism, 10 - cover plate body, 11 - movable window, 12 - cover plate buckle, 13 - reinforcing rib, 14 - support plate, 15 - liquid medicament feeding port, 16 - skeleton agent feeding port, 31 - drive motor speed reducer, 32 - motor mounting box, 33 - support rod, 91 - bearing, 92 - drive gear. DETAILED DESCRIPTION

[0032] The utility model will be explained further in connection with the drawings and examples.

[0033] As Figures 1-4 The utility model discloses a novel stirring shaft sludge modification device, including tank body 1, cover plate body 10, drive device 3, stirring shaft 2, be equipped with cover plate buckle 12 on tank body 1, the cover plate buckle 12 can be with cover plate body 10 movablely connected, be equipped with support plate 14, reinforcing rib 13 and discharge port 5 on tank body 1, the support plate 14 and reinforcing rib 13 strengthen the effect to tank body 1, make the equipment whole more firm, be equipped with movable window 11 on cover plate body 10, the movable window 11 is connected with cover plate body 21 using hinge, is convenient for overhauling and observation, open skeleton agent feeding port 16, liquid medicament feeding port 15, sludge's feed inlet 4 on cover plate body 10, the skeleton agent feeding port 16, liquid medicament feeding port 15 and sludge's feed inlet 4 and cover plate body 10 installation as a whole and can detach.

[0034] The motor mounting box 32 of the driving device 3 is mounted on the side plate of the tank body main body 1, and is used for mounting a driving motor reducer 31, which drives the rotation of the stirring shaft 2, the shaft head of the stirring shaft 2 rotates under the action of the bearing 91 of the power transmission mechanism 9, the other end of the stirring shaft 2 is provided with a driving gear 92, which rotates under the action of the shaft head and drives the rotation of the driven stirring shaft 2, so that the two stirring shafts rotate at the same time. The stirring shaft 2 is provided with three elements, including a crushing element 6, a conveying element 7 and a back mixing element 8, which are welded to the stirring shaft 2 under the action of the supporting rod 33, and the crushing element 6 is designed as a claw structure, which can better crush and mix the sludge.

[0035] The sludge enters from the sludge feeding port 4, and a certain proportion of the skeleton agent and the liquid medicament are added from the skeleton agent feeding port 16 and the liquid medicament feeding port 15 respectively, and the driving motor reducer 31 of the driving device 3 drives the stirring shaft 2 to work, the crushing element 6 on the stirring shaft 2 first acts on the sludge, the large and lump sludge in the feeding sludge is preferentially crushed by the crushing back feeding screw 6, so that the subsequent mixing is more uniform, and the crushing back feeding screw 6 can also prevent part of the sludge from being accumulated in the corner of the side plate, the sludge and the added medicament continue to be mixed under the action of the conveying element 7 and the back mixing element 8, the outer conveying element 7 continues to convey the mixed sludge to the discharge port 15, and the inner back mixing element 8 performs back feeding action on part of the sludge which is not completely mixed, so that the sludge continues to be mixed and modified, the mixing time is increased, and the dewatering performance and the compression resistance of the sludge are improved.

[0036] In order to facilitate the understanding of the above technical scheme of the utility model, the above technical scheme of the utility model is described in detail through specific use mode as follows.

[0037] The specific working process is as follows: first, the sludge to be treated is uniformly put into the tank body 1 through the feeding port 4, and the skeleton agent and the liquid agent are respectively put into the tank body 1 through the skeleton agent feeding port 16 and the liquid agent feeding port 15, and then the sludge and the agents enter the stirring area. Under the action of the driving motor reducer 31 of the driving device 3, the stirring shaft 2 is driven to work, the stirring shaft 2 rotates to drive the claw-shaped crushing element 6 to act on the sludge, and the large agglomerated materials in the feeding sludge are preferentially crushed by the crushing element 6, so that the large agglomerated materials are crushed into smaller particles, the particle distribution of the sludge is more uniform, the subsequent mixing is more uniform, and the situation that the sludge is not uniformly stirred due to the aggregation of large materials is avoided. At the same time, the crushing element 6 can also prevent part of the sludge from being accumulated in the corner of the side plate. The sludge and the added agents continue to be mixed under the action of the outer conveying element 7 and the inner return mixing element 8. The outer conveying element 7 conveys the mixed sludge to the discharge port 5, and the inner return mixing element 8 returns part of the sludge in the inner part to the stirring area, so that the sludge continues to be mixed and modified, thereby prolonging the mixing time and further ensuring the uniform mixing of the sludge and the additive. The dewatering performance and the compression performance of the sludge are improved. The mixed sludge is discharged from the discharge port 5 and conveyed to a subsequent treatment equipment for dewatering or other process treatment.

[0038] During operation, the mixing state of the sludge and the additive can be observed in real time through the movable window 11. If it is found that the feeding is insufficient or the mixing is abnormal, the feeding port can be used for supplementing or adjusting at any time.

[0039] After use, whether there is residual sludge in the device is observed through the movable window 11, and the movable connection design of the cover plate body 10 facilitates cleaning of the inside of the tank.

[0040] The claw-shaped design of the crushing element 6, the spiral blade of the conveying element 7 and the reverse spiral structure of the return mixing element 8 realize the integrated treatment of crushing, mixing, return mixing and conveying of the sludge from feeding to discharging. Not only the mixing efficiency of the sludge and the additive is improved, but also the reliability of the device operation and the convenience of the maintenance are improved, and a more efficient pretreatment means is provided for subsequent sludge dewatering and disposal.

[0041] The stirring shaft 2 has a double-shaft structure, adopts a bearing and gear power transmission mechanism, simplifies the overall structure of the device, and ensures the synchronous rotation of the double stirring shafts. Compared with the complex spring and push rod linkage mechanism in the prior art, the device has a simpler and more reliable structure, and the manufacturing cost and the difficulty of subsequent maintenance are reduced.

[0042] In the description of the utility model, it is necessary to explain that the position or location relation indicated by the terms "upper", "lower" and the like is the position or location relation based on the drawing shown, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular position, be constructed and operated in a particular position, and therefore cannot be understood as a limitation on the utility model. Unless otherwise expressly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements inside. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0043] It should be noted that in the utility model, relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the sentence "including a…" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0044] The above is only a specific embodiment of the utility model, so that those skilled in the art can understand or implement the utility model. Various modifications of these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features of the utility model described herein.

Claims

1. A sludge modification device, comprising a tank body (1), a stirring shaft (2), a driving device (3), the tank body (1) being provided with an inlet (4), an outlet (5) and a plurality of dosing openings, characterized in that: the stirring shaft (2) is a double-shaft structure, and is provided with a crushing element (6) for crushing and back-mixing the material, and a conveying element (7) and a back-mixing element (8) for pushing and back-mixing the material, respectively; the driving device (3) drives the stirring shaft (2) to rotate through a power transmission mechanism (9), so as to uniformly mix the sludge and additives in the tank body (1), and to convey the mixed material to the outlet (5) through the conveying element (7).

2. The sludge modification apparatus according to claim 1, characterized by the tank body (1) is provided with a movable cover plate body (10) at the top, and the cover plate body (10) is movably provided with a movable window (11).

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

4. The sludge modification apparatus according to claim 1, characterized by the crushing element (6) is in the form of a claw and is arranged at the front section of the stirring shaft (2) to crush large pieces of material in the sludge.

5. The sludge modification apparatus according to claim 1, wherein the conveying element (7) is in the form of a spiral blade and is arranged at the outer layer of the stirring shaft (2) to push the mixture forward.

6. The sludge modification apparatus of claim 1, wherein the back-mixing element (8) is in the form of a reverse spiral blade and is arranged at the inner layer of the stirring shaft (2) to return the incompletely mixed material to the stirring area.

7. The sludge modification apparatus of 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, the shaft head of the stirring shaft (2) rotates under the action of the bearing (91), the other end of the stirring shaft (2) is provided with the driving gear (92), the driving gear (92) drives the driven stirring shaft to rotate under the action of the rotating shaft head, so that the double stirring shafts rotate simultaneously.

8. The sludge modification apparatus according to claim 7, characterized by the dosing openings include a skeleton agent dosing opening (16) and a liquid agent dosing opening (15), the motor-reducer (31) is installed in a motor mounting box (32), and the motor mounting box (32) is fixedly mounted on the side plate of the tank body (1).

9. The sludge modification apparatus of claim 1, wherein the tank body (1) is provided with support plates (14) at the lower ends of both sides, and is provided with a reinforcing rib (13) at the center of the lower end.

10. The sludge modification apparatus of claim 1, wherein the crushing element (6), the conveying element (7) and the back-mixing element (8) are welded to the stirring shaft (2) by support rods (33).

Images