Solid-state sludge dosing and mixing device
By introducing a vacuum pressure gauge and an air vent to discharge water vapor into the solid sludge dosing and mixing equipment, and by utilizing agitator blades and a motor-driven oscillating feeding structure, the problem of increased internal pressure was solved, achieving stable operation and long service life of the equipment, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU KAIYAMEI MASCH MFG CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-06-12
AI Technical Summary
Existing solid sludge dosing and mixing equipment generates a large amount of heat and water vapor during the mixing process, which leads to increased pressure and stress inside the agitator drum, affecting the operational stability and service life of the equipment and increasing maintenance costs.
The internal pressure is monitored by a vacuum pressure gauge, water vapor is discharged through the air vent, and the design of the agitator blades and dosing port ensures that the sludge and the agent are mixed evenly. At the same time, a motor and gear structure drive the rotating rod to drive the contact element to vibrate and discharge the sludge into the inlet, thus avoiding blockage.
It achieves uniform mixing and rapid drying of sludge and chemicals, reduces equipment failures, extends service life, lowers maintenance costs, and ensures stable equipment operation.
Smart Images

Figure CN224345711U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sludge treatment technology, specifically to a solid sludge dosing and mixing device. Background Technology
[0002] As is well known, solid sludge dosing and mixing equipment is a device that uniformly mixes solid sludge and chemicals while rapidly drying the sludge. It is suitable for use as a dosing and mixing device in large, medium, and small sludge treatment centers.
[0003] A utility model patent with patent authorization announcement number CN218202510U discloses a solid sludge rolling dosing and mixing device, including a sludge conveyor belt, a drum frame, a dosing drum, a rotary joint, and a geared motor. The dosing drum is rotatably mounted on the drum frame and spans above the sludge conveyor belt. The geared motor is mounted on the drum frame and is used to drive the dosing drum to rotate. One end of the dosing drum is sealed, and the other end is connected to a hollow shaft tube in the middle. The hollow shaft tube is connected to an external reagent source through a rotary joint. The dosing drum has multiple dosing holes on its outer side and a brush is provided on the outer ring of the dosing holes.
[0004] However, existing solid sludge dosing and mixing equipment also has certain shortcomings. Existing solid sludge dosing and mixing equipment simply uses components such as sludge inlet and agitator blades to complete the mixing and stirring of sludge and chemical solution. Because a large amount of heat and water vapor are generated in this process, the internal pressure and intensity of the traditional agitator drum will increase, resulting in problems such as poor operating durability and stability of the agitator drum, short service life and high maintenance costs. Utility Model Content
[0005] The purpose of this utility model is to provide a solid sludge dosing and mixing device, which solves the problem that existing solid sludge dosing and mixing devices simply use components such as sludge inlet and agitator blades to complete the mixing and stirring of sludge and chemical solution. Because a large amount of heat and water vapor are generated in the process, the internal pressure of the traditional agitator drum will increase, resulting in poor operating durability and stability, short service life and high maintenance costs of the agitator drum.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a solid sludge dosing and mixing device, comprising two support bases, a stirrer main shaft being provided on the inner wall of both support bases, a coupling being provided at the left end of the stirrer main shaft, a geared motor being provided at the left end of the coupling, a stirrer drum being provided on the outer side of the stirrer main shaft, the stirrer drum being located between the two support bases, a sludge inlet being provided on the inner wall of the stirrer drum, a vacuum pressure gauge being provided on the inner wall of the stirrer drum and to the right of the sludge inlet, a dosing port being provided on the inner wall of the stirrer drum and to the right of the dosing port, and an air vent being provided on the inner wall of the stirrer drum and to the right of the dosing port.
[0007] Preferably, the surface of the agitator main shaft is provided with agitator blades, which are located inside the agitator drum. The agitator blades can be used to agitate and mix sludge and chemicals.
[0008] Preferably, a feeding mechanism is provided on both the mixer drum and the mud inlet. The feeding mechanism includes a connecting ear. A connecting ear is fixedly connected to the left side of the mud inlet. A support frame is fixedly connected to the upper side of the mixer drum and to the left side of the mud inlet. A motor is fixedly installed on the top inner side of the support frame. A gear is fixedly sleeved on the outer side of the output shaft of the motor. A support cylinder is fixedly connected to the upper side of the mixer drum. A rotating rod is installed on the inner wall of the support cylinder through a bearing. The rotating rod is rotatably connected to the support cylinder. Four mounting shells arranged in a circular array are fixedly connected to the surface of the rotating rod. A telescopic block is slidably connected to the inner wall of each mounting shell. A contact element is fixedly connected to the other end of the telescopic block. The contact element on the right side contacts the connecting ear. Through the arrangement of the motor, gear, and other structures, the rotating rod can drive the mounting shell to rotate, thereby causing the contact element to continuously contact and impact the connecting ear, and vibrate the mud inlet for feeding.
[0009] Preferably, a reinforcing plate is fixedly connected to the vertical part of the support frame, and the other supporting edge of the reinforcing plate is fixedly connected to the mixer drum. The reinforcing plate can be used to reinforce the support frame.
[0010] Preferably, a second gear is fixedly sleeved on the outer side of the rotating rod. The second gear meshes with the first gear. Through this meshing relationship, when the first gear rotates, it can drive the second gear to rotate.
[0011] Preferably, a spring is welded to the end face of the telescopic block near the rotating rod, and the other end of the spring is welded to the mounting shell. The telescopic block can be connected and used by means of the spring.
[0012] Preferably, the contact element is spherical in shape and made of stainless steel. The use of stainless steel ensures good durability of the contact element.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. This utility model, through the configuration of a geared motor, agitator blades, dosing port, and air vent, ensures that all sludge enters the agitator drum through the sludge inlet, allowing the sludge and chemicals to mix evenly. The mixing of sludge and chemicals releases a large amount of heat, rapidly drying the sludge. The generated water vapor is drawn away through the air vent, leaving the dried sludge to be discharged through the slag outlet after the drying process is complete. This ensures stable operation of the sludge treatment equipment, reduces equipment failures, extends service life, and reduces subsequent maintenance costs.
[0015] 2. This utility model, through the arrangement of a motor, gear two, gear one, and other structures, can drive a rotating rod to rotate the mounting shell, thereby causing the contact parts to rotate and continuously contact and impact the connecting ears, thus causing the sludge inlet to vibrate, assisting in the rapid discharge of sludge and avoiding the problem of uneven discharge from the sludge inlet. Attached Figure Description
[0016] Figure 1 This is a perspective view of the overall structure of this utility model;
[0017] Figure 2 For the present utility model Figure 1 Enlarged view of the feeding mechanism;
[0018] Figure 3 For the present utility model Figure 2 Enlarged view of the support cylinder;
[0019] Figure 4 For the present utility model Figure 3 Top view of the mounting shell.
[0020] In the diagram: 1. Support base; 2. Agitator main shaft; 3. Coupling; 4. Gear motor; 5. Agitator drum; 6. Agitator blades; 7. Mud inlet; 8. Vacuum pressure gauge; 9. Chemical dosing port; 10. Air vent; 11. Discharge mechanism; 110. Connecting lug; 111. Support frame; 112. Reinforcing plate; 113. Motor; 114. Gear 1; 115. Support cylinder; 116. Rotating rod; 117. Gear 2; 118. Mounting shell; 119. Telescopic block; 120. Spring; 121. Contact element. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 A solid sludge dosing and mixing device includes two support bases 1. A stirrer main shaft 2 is mounted on the inner wall of both support bases 1. A coupling 3 is mounted on the left end of the stirrer main shaft 2, and a reduction motor 4 is mounted on the left end of the coupling 3. A stirrer drum 5 is mounted on the outer side of the stirrer main shaft 2, located between the two support bases 1. Stirrer blades 6 are mounted on the surface of the stirrer main shaft 2, located inside the stirrer drum 5. The stirrer blades 6 allow for stirring and mixing of sludge and chemicals. A sludge inlet 7 is mounted on the inner wall of the stirrer drum 5, and a vacuum pressure gauge 8 is mounted on the inner wall of the stirrer drum 5 to the right of the sludge inlet 7. A dosing port 9 is mounted on the inner wall of the stirrer drum 5 to the right of the vacuum pressure gauge 8, and an air vent 10 is mounted on the inner wall of the stirrer drum 5 to the right of the dosing port 9.
[0023] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 A feeding mechanism 11 is provided on both the mixer drum 5 and the mud inlet 7. The feeding mechanism 11 includes a connecting lug 110. The connecting lug 110 is fixedly connected to the left side of the mud inlet 7. A support frame 111 is fixedly connected to the upper side of the mixer drum 5 and to the left side of the mud inlet 7. A motor 113 is fixedly installed on the top inner side of the support frame 111. A gear 114 is fixedly sleeved on the outer side of the output shaft of the motor 113. A support cylinder 115 is fixedly connected to the upper side of the mixer drum 5. A rotating rod 116 is installed on the inner wall of the support cylinder 115 through a bearing. The rotating rod 116 is connected to the support cylinder 115. The support cylinder 115 is rotatably connected, and four mounting shells 118 arranged in a circular array are fixedly connected to the surface of the rotating rod 116. Each mounting shell 118 has a telescopic block 119 slidably connected to its inner wall. The other end of the telescopic block 119 is fixedly connected to a contact member 121. The right contact member 121 contacts the connecting ear 110. Through the setting of the motor 113, gear 114 and other structures, the rotating rod 116 can drive the mounting shell 118 to rotate, thereby causing the contact member 121 to continuously contact and impact the connecting ear 110, and to vibrate and discharge the mud inlet 7.
[0024] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 A reinforcing plate 112 is fixedly connected to the vertical part of the support frame 111. The other supporting side of the reinforcing plate 112 is fixedly connected to the mixer drum 5. The reinforcing plate 112 can be used to reinforce the support frame 111. A gear 117 is fixedly sleeved on the outside of the rotating rod 116. The gear 117 meshes with the gear 114. Through the meshing relationship, when the gear 114 rotates, it can drive the gear 117 to rotate.
[0025] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 A spring 120 is welded to the end face of the telescopic block 119 near the rotating rod 116. The other end of the spring 120 is welded to the mounting shell 118. The telescopic block 119 can be connected and used through the setting of the spring 120. The contact element 121 is spherical in shape and is made of stainless steel. The stainless steel material can ensure the good durability of the contact element 121.
[0026] The specific implementation process of this utility model is as follows: In use, sludge can be input into the agitator drum 5 through the sludge inlet 7. Under the action of the dosing port 9, the agent can be added and used. When the reduction motor 4 drives the coupling 3 to rotate, it can drive the agitator main shaft 2 to rotate, thereby driving the agitator blades 6 to rotate continuously, so as to mix the sludge and agent inside the agitator drum 5 evenly. During the mixing process of sludge and agent, a large amount of heat will be released, and the heat generated will dry the sludge quickly. At the same time, a large amount of water vapor will be generated. The generated water vapor will be drawn away from the air inlet 10, leaving the dried sludge to be discharged from the slag discharge port of the agitator drum 5. Under the action of the vacuum pressure gauge 8, the internal condition of the agitator drum 5 can be monitored. If the air inlet 10 is not smooth, the internal pressure of the agitator drum 5 will increase, thereby triggering the alarm device to automatically stop the machine for protection. Subsequent manual intervention is required to ensure the normal operation of the equipment.
[0027] When sludge is input into the sludge inlet 7, the output shaft is driven to rotate by the motor 113, which in turn drives the gear 114 to rotate. Under the meshing relationship, the gear 114 drives the gear 117 to rotate, which in turn drives the rotating rod 116 to rotate. The rotating rod 116 drives the mounting shell 118 to rotate, which in turn drives the telescopic block 119 to rotate, which in turn drives the contact member 121 to rotate. The contact member 121 continuously impacts the connecting ear 110, which ultimately causes the sludge inlet 7 to vibrate, thus assisting in the feeding of sludge and preventing the problem of uneven feeding from the sludge inlet 7.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A solid sludge dosing and mixing device, comprising two support bases (1), characterized in that: The inner walls of the two support bases (1) are provided with a stirrer spindle (2). A coupling (3) is provided at the left end of the stirrer spindle (2). A geared motor (4) is provided at the left end of the coupling (3). A stirrer drum (5) is provided on the outside of the stirrer spindle (2). The stirrer drum (5) is located between the two support bases (1). A mud inlet (7) is provided on the inner wall of the stirrer drum (5). A vacuum pressure gauge (8) is provided on the inner wall of the stirrer drum (5) to the right of the mud inlet (7). A chemical dosing port (9) is provided on the inner wall of the stirrer drum (5) to the right of the vacuum pressure gauge (8). An air vent (10) is provided on the inner wall of the stirrer drum (5) to the right of the chemical dosing port (9).
2. The solid sludge dosing and mixing equipment according to claim 1, characterized in that: The surface of the agitator spindle (2) is provided with agitator blades (6), which are located inside the agitator drum (5).
3. The solid sludge dosing and mixing equipment according to claim 1, characterized in that: A feeding mechanism (11) is provided on both the agitator drum (5) and the mud inlet (7). The feeding mechanism (11) includes a connecting lug (110). The connecting lug (110) is fixedly connected to the left side of the mud inlet (7). A support frame (111) is fixedly connected to the upper side of the agitator drum (5) and to the left side of the mud inlet (7). A motor (113) is fixedly installed on the top inner side of the support frame (111). A gear (114) is fixedly sleeved on the outer side of the output shaft of the motor (113). The upper part of the agitator drum (5) is... A support cylinder (115) is fixedly connected to the side. A rotating rod (116) is installed on the inner wall of the support cylinder (115) through a bearing. The rotating rod (116) is rotatably connected to the support cylinder (115). Four mounting shells (118) arranged in a ring array are fixedly connected to the surface of the rotating rod (116). A telescopic block (119) is slidably connected to the inner wall of each mounting shell (118). A contact element (121) is fixedly connected to the other end of the telescopic block (119). The contact element (121) on the right side contacts the connecting ear (110).
4. The solid sludge dosing and mixing equipment according to claim 3, characterized in that: The vertical part of the support frame (111) is fixedly connected to a reinforcing plate (112), and the other supporting side of the reinforcing plate (112) is fixedly connected to the mixer drum (5).
5. A solid sludge dosing and mixing device according to claim 3, characterized in that: Gear 2 (117) is fixedly sleeved on the outside of the rotating rod (116), and gear 2 (117) meshes with gear 1 (114).
6. The solid sludge dosing and mixing equipment according to claim 3, characterized in that: A spring (120) is welded to the end face of the telescopic block (119) near the rotating rod (116), and the other end of the spring (120) is welded to the mounting shell (118).
7. A solid sludge dosing and mixing device according to claim 3, characterized in that: The contact element (121) is spherical in shape and is made of stainless steel.
Citation Information
Patent Citations
Solid sludge rolling dosing and mixing equipment
CN218202510U