Continuous sludge conditioner roller dryer
By introducing electric heating elements and humidity monitoring sensors into the sludge conditioner drum dryer, combined with a circulation structure, the problems of uneven drying and incomplete drying were solved, achieving efficient and uniform sludge conditioner drying.
Patent Information
- Application Number
- CN202423279806.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing sludge conditioner drum dryers cannot automatically detect and repeatedly dry incompletely dried materials, and there is also the problem of uneven heating.
Design a continuous sludge conditioner drum dryer, which uses electric heating tubes for heating and humidity monitoring sensors to detect humidity in real time. The circulating structure is used to achieve re-drying of incompletely dried materials to ensure thorough drying.
This method achieves efficient and uniform drying of sludge conditioner, improves drying efficiency and quality, and ensures complete drying of materials.
Smart Images
Figure CN223623280U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of sludge conditioner production equipment, specifically a continuous sludge conditioner drum dryer. Background Technology
[0002] Sludge conditioner is a chemical agent mainly used to change the surface structure of sludge, reduce the solid surface load and specific surface area of sludge, and destroy the bacterial structure, thereby reducing the surface activity and adhesion of sludge.
[0003] Drying is a crucial step in the production of sludge conditioners, helping to remove moisture from the material to meet the requirements of storage, transportation, or subsequent processing. Rotary drum dryers, as a type of contact-type internal heating and conduction drying machinery, have advantages such as high thermal efficiency and high drying rate, and are therefore widely used in the drying processes of various materials, including the production of sludge conditioners.
[0004] However, existing rotary drum dryers for sludge conditioners have the following shortcomings: 1. After drying and outputting the sludge conditioner raw materials, they cannot detect whether the raw materials still contain moisture or dampness. Consequently, they cannot automatically repeat the drying process on incompletely dried sludge conditioner raw materials containing moisture or dampness, resulting in low drying efficiency; 2. Current rotary drum dryers typically use steam heating or hot air circulation heating methods. High-temperature air is introduced into the internal cavity of the dryer through a fan to form a hot air circulation, which heats and dries the material. However, due to the large size of the entire internal cavity of the dryer, this method has the potential for uneven heating in certain areas.
[0005] Therefore, it is necessary to design a continuous sludge conditioner drum dryer to solve the problems mentioned above. Utility Model Content
[0006] The purpose of this invention is to provide a continuous sludge conditioner drum dryer to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A continuous sludge conditioner rotary drum dryer includes a rotary drum dryer body. The rotary drum dryer body includes a dryer shell located on its outer side, a heating layer and a drying layer located inside the dryer shell, with the drying layer rotating inside the heating layer. A head and a tail are respectively connected to the outer sides of both axial ends of the dryer shell. A feed inlet is fixedly installed at the top of the head. A speed reducer is installed on one side of the head, away from the rotary drum dryer body. A duct interface is opened at the top of the tail, and a pressure relief valve is fixedly connected through the duct interface. A discharge port is located at the bottom of the tail. A fixed connecting ring is fitted onto the outer side of the dryer shell, and the bottom of the fixed connecting ring is supported by a support roller. A support seat is fixedly installed at the bottom of the support roller. A circulation structure is also provided between the discharge port and the feed inlet. A control device is also fixedly installed on the outer base surface of the dryer shell.
[0009] As a preferred embodiment of this utility model, the interior of the end cap and the outer side of one end of the drum dryer body are interference-fitted, and a sealing gasket is provided between the end cap and the drum dryer body. The interior of the end cap and the outer side of one end of the drum dryer body are interference-fitted, and a sealing gasket is provided between the end cap and the drum dryer body.
[0010] As a preferred embodiment of this utility model, the feed port penetrates the interior of the sealing head and is connected to the interior of the drying layer, and the discharge port penetrates the interior of the sealing tail and is also connected to the interior of the drying layer.
[0011] As a preferred embodiment of this utility model, an electric heating tube is laid inside the heating layer, and a heat insulation layer is provided between the outer side of the heating layer and the inner wall of the dryer shell.
[0012] As a preferred embodiment of this utility model, a shaft is provided on the axial side of the drying layer away from the reducer, and the output shaft of the reducer and the shaft on the drying layer side are fixedly connected by a coupling.
[0013] As a preferred embodiment of this utility model, the circulation structure includes circulation pipes fixedly connected to the inlet and the outlet respectively, a circulation pump body fixedly connected to the circulation pipes, and an electrically controlled three-way valve fixedly connected between the circulation pipes and the outlet on the side of the outlet.
[0014] As a preferred embodiment of this utility model, a humidity monitoring sensor is also fixedly connected between the bottom of the discharge port and the electrically controlled three-way valve. The humidity monitoring sensor and the electrically controlled three-way valve are both electrically connected to the control device.
[0015] As a preferred embodiment of this utility model, a plurality of buffer washers are also arranged around the fixed connecting ring and the dryer housing.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] In this invention, a continuous sludge conditioner drum dryer is used to dry sludge conditioner raw materials. The raw materials are fed into the drying chamber inside the drum dryer through the inlet, and heat is provided by the heating layer to dry them. Simultaneously, the heating layer rotates via a reducer, ensuring more thorough drying of the sludge conditioner raw materials. After drying, the raw materials are discharged through the outlet, and a humidity monitoring sensor at the outlet monitors the humidity in real time to ensure complete drying. If incomplete drying is detected, a recirculation structure is used to perform a second drying operation on the sludge conditioner raw materials. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0019] Figure 2 for Figure 1 A three-dimensional structural diagram of the other side;
[0020] Figure 3 for Figure 2 Schematic diagram of the three-dimensional structure of a partial internal cross section;
[0021] Figure 4 This is a three-dimensional structural diagram of the loop structure of this utility model.
[0022] In the diagram: 1. Main body of the drum dryer; 2. Dryer outer shell; 3. Heating layer; 4. Drying layer; 5. End cap; 6. End cap; 7. Feed inlet; 8. Reducer; 9. Air duct interface; 10. Discharge outlet; 11. Fixed connecting ring; 12. Support roller; 13. Bearing seat; 14. Circulation structure; 141. Circulation pipe; 142. Circulation pump body; 143. Electrically controlled three-way valve; 15. Electric heating element; 16. Heat insulation layer; 17. Humidity monitoring sensor; 18. Control device; 19. Buffer gasket. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0024] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are provided. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.
[0025] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0027] For examples, please refer to Figure 1-4 This utility model provides a technical solution:
[0028] A continuous sludge conditioner rotary drum dryer includes a rotary drum dryer body 1. The rotary drum dryer body 1 includes a dryer shell 2 located on its outer side, a heating layer 3 located inside the dryer shell 2, and a drying layer 4 located inside the dryer shell 2. The drying layer 4 rotates inside the heating layer 3. A head 5 and a tail 6 are respectively connected to the outer sides of the two axial ends of the dryer shell 2. A feed inlet 7 is fixedly provided at the top of the head 5. A reducer 8 is provided at one side of the head 5 and at the end away from the rotary drum dryer body 1. An air duct interface 9 is provided at the top of the tail 6, and a pressure relief valve is fixedly connected through the air duct interface 9. A discharge port 10 is provided at the bottom of the tail 6. A fixed connecting ring 11 is sleeved and installed on the outer side of the dryer shell 2. The bottom of the fixed connecting ring 11 is supported by a support roller 12. A support seat 13 is fixedly installed at the bottom of the support roller 12. A circulation structure 14 is also provided between the discharge port 10 and the feed inlet 7. A control device 18 is also fixedly installed on the outer base surface of the dryer shell 2.
[0029] Specifically, the interior of the end cap 5 and the outer side of one end of the drum dryer body 1 are interference-fitted, and a sealing gasket is provided between the end cap 5 and the drum dryer body 1. The interior of the end cap 6 and the outer side of one end of the drum dryer body 1 are interference-fitted, and a sealing gasket is provided between the end cap 6 and the drum dryer body 1. The feed inlet 7 penetrates the interior of the end cap 5 and is connected to the interior of the drying layer 4. The discharge outlet 10 penetrates the interior of the end cap 6 and is also connected to the interior of the drying layer 4. The sludge conditioner raw material is fed into the internal cavity of the drum dryer body 1 from the feed inlet 7 on one side and is finally discharged from the bottom discharge outlet 10. The interference fit connection enhances the connection strength between the two, effectively preventing loosening or detachment at the connection, and improving the stability and reliability of the entire structure.
[0030] Specifically, electric heating tubes 15 are laid inside the heating layer 3, and a heat insulation layer 16 is provided between the outer side of the heating layer 3 and the inner wall of the dryer shell 2; a shaft is provided on the axial side of the drying layer 4 away from the reducer 8, and the output shaft of the reducer 8 and the shaft on one side of the drying layer 4 are fixedly connected by a coupling; the sludge conditioner raw material is dried by using the electric heating tubes 15 arranged around the inside of the drum dryer, and the drying layer 4 rotates synchronously, which can improve the drying efficiency and completeness of the sludge conditioner raw material.
[0031] Specifically, the circulation structure 14 includes a circulation pipe 141 fixedly connected to the inlet 7 and the outlet 10 respectively. A circulation pump body 142 is fixedly connected to the circulation pipe 141, and an electrically controlled three-way valve 143 is fixedly connected between the circulation pipe 141 and the outlet 10 on one side of the outlet 10. During normal discharge, the outlet 10 is connected to the bottom output interface of the electrically controlled three-way valve 143, so that the sludge conditioner raw material is output from this port. When it is detected that drying is required again, this side channel is closed, and the outlet 10 and the side output interface of the electrically controlled three-way valve 143 are connected, so that the sludge conditioner raw material re-enters the inlet 7 through the circulation pipe 141 for re-drying.
[0032] A humidity monitoring sensor 17 is fixedly connected between the bottom of the discharge port 10 and the electrically controlled three-way valve 143. The humidity monitoring sensor 17 and the electrically controlled three-way valve 143 are both electrically connected to the control device 18. The humidity monitoring sensor 17 is used to monitor the internal humidity or moisture of the sludge conditioner raw material in order to control whether subsequent circulating drying operations are required.
[0033] Specifically, a plurality of buffer washers 19 are also arranged around the fixed connecting ring 11 and the dryer housing 2; when the drum dryer is running, vibration will occur, and the buffer washers 19 are used to buffer the collision between the machine body and the fixed connecting ring 11.
[0034] The working process of this utility model is as follows: When using this continuous sludge conditioner drum dryer, the sludge conditioner raw material is fed into the drying layer 4 cavity inside the main body of the drum dryer through the feed port 7. Then, the sludge conditioner raw material is dried by the electric heating tubes 15 arranged around the inside of the drum dryer. At the same time, the drying layer 4 rotates synchronously, which can improve the drying efficiency and completeness of the sludge conditioner raw material, and finally it is sent out from the bottom discharge port 10. There are two situations during discharge: During normal discharge, the discharge port 10 is connected to the bottom output interface of the electrically controlled three-way valve 143, so that the sludge conditioner raw material is output from this port. When it is detected that drying is required again, this side channel is closed, and the discharge port 10 is connected to the side output interface of the electrically controlled three-way valve 143, so that the sludge conditioner raw material re-enters the feed port 7 through the circulation pipe 141 for re-drying.
[0035] 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 continuous sludge conditioner drum dryer, comprising a drum dryer body (1), characterized in that: The main body (1) of the drum dryer includes a dryer shell (2) located on its outer side, a heating layer (3) and a drying layer (4) located inside the dryer shell (2), and the drying layer (4) rotates inside the heating layer (3). A head (5) and a tail (6) are respectively connected to the outer sides of both axial ends of the dryer shell (2). A feed inlet (7) is fixedly provided on the top of the head (5). A speed reducer (8) is provided on one side of the head (5) and at the end away from the main body (1) of the drum dryer. A [missing information] is provided on the top of the tail (6). A duct interface (9) is provided, and a pressure relief valve is fixedly connected to the duct interface (9). A discharge port (10) is provided at the bottom of the end cap (6). A fixed connecting ring (11) is fitted on the outside of the dryer shell (2). The bottom of the fixed connecting ring (11) is supported by a support roller (12). A support seat (13) is fixedly installed at the bottom of the support roller (12). A circulation structure (14) is also provided between the discharge port (10) and the inlet (7). A control device (18) is also fixedly installed on the outer base surface of the dryer shell (2).
2. The continuous sludge conditioner drum dryer according to claim 1, characterized in that: The end cap (5) is press-fitted with the outer side of one end of the drum dryer body (1), and a sealing gasket is provided between the end cap (5) and the drum dryer body (1). The end cap (6) is press-fitted with the outer side of one end of the drum dryer body (1), and a sealing gasket is provided between the end cap (6) and the drum dryer body (1).
3. A continuous sludge conditioner drum dryer according to claim 1, characterized in that: The feed inlet (7) penetrates the interior of the end cap (5) and is connected to the interior of the drying layer (4), and the discharge outlet (10) penetrates the interior of the end cap (6) and is also connected to the interior of the drying layer (4).
4. A continuous sludge conditioner drum dryer according to claim 1, characterized in that: An electric heating tube (15) is laid inside the heating layer (3), and a heat insulation layer (16) is provided between the outer side of the heating layer (3) and the inner wall of the dryer shell (2).
5. A continuous sludge conditioner drum dryer according to claim 1, characterized in that: A shaft is provided on the axial side of the drying layer (4) away from the reducer (8), and the output shaft of the reducer (8) and the shaft on the side of the drying layer (4) are fixedly connected by a coupling.
6. A continuous sludge conditioner drum dryer according to claim 1, characterized in that: The circulation structure (14) includes a circulation pipe (141) fixedly connected to the inlet (7) and the outlet (10) respectively. A circulation pump body (142) is fixedly connected to the circulation pipe (141), and an electrically controlled three-way valve (143) is fixedly connected between the circulation pipe (141) and the outlet (10) on one side of the outlet (10).
7. A continuous sludge conditioner drum dryer according to claim 1, characterized in that: A humidity monitoring sensor (17) is fixedly connected between the bottom of the discharge port (10) and the electrically controlled three-way valve (143). The humidity monitoring sensor (17) and the electrically controlled three-way valve (143) are both electrically connected to the control device (18).
8. A continuous sludge conditioner drum dryer according to claim 1, characterized in that: Multiple buffer washers (19) are also arranged around the fixed connecting ring (11) and the dryer housing (2).