Domestic sewage treatment integrated device

Abstract

The invention discloses a domestic sewage treatment integrated device, and belongs to the technical field of sewage treatment. Comprising an outer cylinder body and an inner cylinder body which are coaxially arranged, an annular feeding channel is formed between the inner conical section at the upper end of the inner barrel and the outer conical section at the upper end of the outer barrel; the conical filter screen is sleeved on the inner conical section; the partition plate is fixed in the inner barrel body and divides an inner cavity of the inner barrel body into an upper cavity body and a lower cavity body; the upper stirring shaft is rotatably mounted at the axis of the upper cavity, the lower stirring shaft is rotatably mounted at the axis of the lower cavity, and a speed reducer is in transmission connection between the lower stirring shaft and the upper stirring shaft, so that the rotating speed of the lower stirring shaft is greater than that of the upper stirring shaft. The upper stirring shaft and the stirring shaft realize different rotating speeds through the speed reducer, the rotating speed of the upper stirring shaft is relatively slow, and the upper stirring shaft is mainly used for pre-stirring sewage in the upper cavity; the rotating speed of the lower stirring shaft is high, the lower stirring shaft is used for deeply stirring the sewage in the lower cavity, and the sewage is more uniform in the treatment process through sectional continuous treatment.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to an integrated device for treating domestic sewage. Background Art

[0002] With the acceleration of urbanization, the amount of domestic waste has increased dramatically. How to deal with this waste efficiently and environmentally friendly has become an urgent problem to be solved. In the process of domestic waste treatment, the separation and treatment of sewage is a key link. Most of the domestic sewage treatment devices in the prior art use simple filtration or sedimentation methods to separate solid particles in sewage. The shortcomings of this method are: The treatment of sewage is discontinuous. After the sewage accumulates to a certain amount, it is purified by adding reagents and stirring. This results in low working efficiency of the equipment. In addition, the sewage is prone to precipitation during the aggregation process, which affects the subsequent stirring treatment effect. Summary of the invention

[0003] In view of the above-mentioned technical deficiencies, the present invention provides an integrated device for treating domestic sewage.

[0004] The present invention adopts the following technical solution: an integrated device for treating domestic sewage, include: An outer cylinder, wherein the upper end of the outer cylinder has an outer conical section; An inner cylinder is coaxially arranged in the outer cylinder; an inner conical section is provided at the upper end of the inner cylinder, and an annular feed channel is formed between the inner conical section and the outer conical section; A conical filter screen is mounted on the inner conical section; the inner conical section is provided with a through groove opposite to the conical filter screen; A partition is fixed in the inner cylinder to divide the inner cavity of the inner cylinder into an upper cavity and a lower cavity; a valve connecting the upper cavity and the lower cavity is installed on the partition; An upper stirring shaft, rotatably mounted on the axis of the upper cavity; The lower stirring shaft is rotatably mounted on the axis of the lower cavity; a reducer is transmission-connected between the lower stirring shaft and the upper stirring shaft, so that the rotation speed of the lower stirring shaft is greater than that of the upper stirring shaft.

[0005] Preferably, the lower end of the outer cylinder has a discharge port, and the upper end of the outer conical section has a feed port.

[0006] Preferably, the upper end of the inner conical section has a support cylinder, and a reduction motor for driving the upper stirring shaft is fixed on the support cylinder.

[0007] Preferably: the upper end of the outer conical section has a positioning cylinder, which is sleeved on the supporting cylinder and covered outside the reduction motor; the lower end of the positioning cylinder has a conical pressure plate, which presses on the upper ends of the inner conical section and the conical filter.

[0008] Preferably, the outer conical section is fixedly connected to the main body of the outer cylinder through a flange and bolts.

[0009] Preferably, the lower end of the conical filter screen has a circle of water retaining edge; the inner conical section has a circle of bosses abutting against the lower end of the conical filter screen.

[0010] Preferably: a cleaning rod is fixed on the upper stirring shaft, and an inclined brush corresponding to the inner wall of the conical filter is fixed on the cleaning rod; an upper stirring rod connected to the upper stirring shaft is arranged below the cleaning rod; A lower stirring rod is fixed on the lower stirring shaft.

[0011] Preferably: the reducer includes a shell fixed on the lower side of the partition, the lower end of the upper stirring shaft and the upper end of the lower stirring shaft are both located in the shell, and the lower end of the upper stirring shaft and the upper end of the lower stirring shaft are connected by a gear set.

[0012] Preferably: the upper stirring shaft and the lower stirring shaft are arranged coaxially, a countersunk hole is opened at the upper end of the lower stirring shaft, and the lower end of the upper stirring shaft is located in the countersunk hole; a bearing is installed between the lower end of the upper stirring shaft and the inner wall of the countersunk hole; the lower end of the lower stirring shaft is rotatably connected to a support seat, and the support seat is fixed to the bottom of the inner cylinder.

[0013] Preferably: a mounting block is fixed on one side of the inner cylinder, and the outer side of the mounting block is an arc-shaped surface that matches the inner wall of the outer cylinder; the valve is installed in the mounting block; A dosing tube and a water outlet tube are inserted through the installation block, the inner ends of the dosing tube and the water outlet tube penetrate into the lower cavity of the outer cylinder, and the outer ends of the dosing tube and the water outlet tube penetrate out of the outer cylinder.

[0014] The beneficial effects of the present invention are: The conical filter allows the sewage in the domestic garbage to be separated smoothly and flow into the inner cylinder, thereby improving the efficiency of solid-liquid separation; the inner cylinder is provided with an upper and a lower chamber for independent stirring, wherein the upper stirring shaft and the stirring shaft achieve different speeds through a reducer, the upper stirring shaft has a slower speed and is mainly used for pre-stirring the sewage in the upper chamber; the lower stirring shaft has a faster speed and is used for deep stirring of the sewage in the lower chamber, and through segmented continuous treatment, the stirring effect is improved and the sewage is made more uniform during the treatment process; The cleaning rod and inclined brush fixed on the upper stirring shaft can clean the inner wall of the conical filter as the stirring shaft rotates, effectively preventing the filter from being blocked and improving the filtering efficiency and service life of the filter; the outer conical section adopts a separation structure and cooperates with the inner conical section to realize the positioning of the conical filter, which is convenient for disassembly and cleaning of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a stereoscopic diagram of an integrated domestic sewage treatment device of the present invention.

[0017] Figure 2 This is a top view of an integrated domestic sewage treatment device of the present invention.

[0018] Figure 3 This is an exploded view of an integrated domestic sewage treatment device of the present invention.

[0019] Figure 4 It is a main cross-sectional view of an integrated domestic sewage treatment device of the present invention.

[0020] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0021] Figure 6 for Figure 4 Enlarged view of point B in the middle.

[0022] Figure 7 It is a stereoscopic diagram of the conical filter screen in the present invention.

[0023] Figure 8 It is a three-dimensional diagram of the stirring structure in the present invention.

[0024] Description of reference numerals: 1. outer cylinder; 11. outer conical section; 12. annular feed channel; 13. feed port; 14. discharge port; 15. positioning cylinder; 151. conical pressure plate; 2. Inner cylinder; 21. Inner conical section; 211. Through groove; 212. Boss; 22. Upper cavity; 23. Lower cavity; 24. Support cylinder; 25. Medication tube; 26. Water outlet pipe; 3. Conical filter; 31. Water retaining edge; 4. Partition; 5. Valve; 51. Mounting block; 6. Upper stirring shaft; 61. Speed ​​reduction motor; 62. Cleaning rod; 621. Inclined brush; 63. Upper stirring rod; 7. lower stirring shaft; 71. support seat; 72. lower stirring rod; 8. Reducer; 81. Housing; 82. Gear set; 83. Bearing. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Embodiment 1: like Figures 1 to 4 As shown, the present invention provides an integrated device for treating domestic sewage, comprising an outer cylinder 1 and an inner cylinder 2 arranged coaxially. The upper end of the outer cylinder 1 has an outer conical section 11, and the upper end of the outer conical section 11 has a feed port 13 for feeding domestic waste. The lower end of the outer cylinder 1 also has a conical structure, and a discharge port 14 is provided at the lowest position of the conical structure for discharging filtered domestic waste.

[0027] The lower end of the inner cylinder 2 is sealed and supported on the inner wall of the outer cylinder 1 by a support frame. The upper end of the inner cylinder 2 has an inner conical section 21, and the upper end of the inner conical section 21 has a support cylinder 24. The inner conical section 21 is opposite to the outer conical section 11, and an annular feed channel 12 is formed between the inner conical section 21 and the outer conical section 11. The conical filter 3 is mounted on the inner conical section 21, and a through groove 211 opposite to the conical filter 3 is provided on the inner conical section 21. The domestic garbage fed from the feed port 13 first passes through the annular feed channel 12. During this process, the sewage in the domestic garbage passes through the conical filter 3 and the through groove 211 and enters the inner cylinder 2; the filtered domestic garbage passes through the annular feed channel 12, enters the annular gap between the outer cylinder 1 and the inner cylinder 2, falls to the bottom of the outer cylinder 1, and is discharged from the discharge port 14.

[0028] Recombination Figure 5 , Figure 6 and Figure 8As shown, the partition 4 is fixed in the inner cylinder 2, dividing the inner cavity of the inner cylinder 2 into an upper cavity 22 and a lower cavity 23. The upper stirring shaft 6 is rotatably mounted on the axis of the upper cavity 22, and the lower stirring shaft 7 is rotatably mounted on the axis of the lower cavity 23. The reduction motor 61 is fixed at the upper end of the support cylinder 24, and a sealing block is installed in the support cylinder 24. The output shaft of the reduction motor 61 passes through the sealing block and is fixedly connected to the upper end of the upper stirring shaft 6. The reducer 8 is fixed on the lower side of the partition 4, and the lower end of the upper stirring shaft 6 passes through the partition 4 and enters the reducer 8, and the upper end of the lower stirring shaft 7 also passes through the reducer 8. The transmission connection between the upper stirring shaft 6 and the lower stirring shaft 7 is realized through the reducer 8, and the rotation speed of the lower stirring shaft 7 is greater than the rotation speed of the upper stirring shaft 6.

[0029] The upper stirring shaft 6 is fixed with a uniformly distributed cleaning rod 62, and the cleaning rod 62 is fixed with an inclined brush 621, which is opposite to the inner wall of the conical filter 3. An upper stirring rod 63 is arranged below the cleaning rod 62, and the upper stirring rod 63 is uniformly fixed to the lower half of the upper stirring shaft 6. A lower stirring rod 72 is fixed to the lower stirring shaft 7. The sewage that passes through the conical filter 3 and the through groove 211 and enters the inner cylinder 2 is first temporarily stored in the upper cavity 22. When the upper stirring shaft 6 rotates, the sewage in the upper cavity 22 is pre-mixed by the upper stirring rod 63, and the mixing speed is slow; at the same time, the rotating cleaning rod 62 cleans the inner wall of the conical filter 3 through the inclined brush 621, thereby improving the filtering effect of the conical filter 3; the pre-mixed sewage enters the lower cavity 23 through the valve 5, and when the lower stirring shaft 7 rotates, the sewage in the lower cavity 23 is stirred by the lower stirring rod 72, and the mixing speed is fast.

[0030] like Figures 3 to 6 As shown, a through hole is provided on one side of the partition 4 for connecting the upper cavity 22 and the lower cavity 23, and the through hole is controlled by a valve 5 on one side. A mounting block 51 is fixed on one side of the inner cylinder 2, and the outer side of the mounting block 51 is an arc-shaped surface; after the inner cylinder 2 is installed in the outer cylinder 1, the outer arc-shaped surface of the mounting block 51 cooperates with the inner wall of the outer cylinder 1. The valve 5 is installed in the mounting block 51. A dosing tube 25 and a water outlet pipe 26 are also penetrated in the mounting block 51, and the inner ends of the dosing tube 25 and the water outlet pipe 26 penetrate into the lower cavity 23 of the outer cylinder 1, and the outer ends of the dosing tube 25 and the water outlet pipe 26 penetrate out of the outer cylinder 1. In this embodiment, the dosing tube 25 and the water outlet pipe 26 are separated into two parts in the mounting block 51, and the inner section of the dosing tube 25 and the water outlet pipe 26 are installed from the inside of the inner cylinder 2, and the outer section of the dosing tube 25 and the water outlet pipe 26 are installed from the outside of the outer cylinder 1, so as to facilitate the assembly of the inner cylinder 2, the dosing tube 25 and the water outlet pipe 26. When the lower stirring rod 72 stirs the sewage in the lower cavity 23, a certain amount of treatment reagent is added through the dosing tube 25, and the sewage purification treatment is completed, and the treated sewage is discharged to the outside through the water outlet pipe 26.

[0031] Working process: Domestic waste is put into the feed port 13, then slowly enters the annular gap between the outer cylinder 1 and the inner cylinder 2 through the annular feed channel 12, and finally falls to the bottom of the outer cylinder 1 and is discharged from the discharge port 14; When the domestic garbage passes through the annular feed channel 12, the sewage in the domestic garbage passes through the conical filter screen 3 and the through groove 211 and enters the upper cavity 22 in the inner cylinder 2; at this time, the valve 5 on the partition 4 is in a closed state, and the sewage is temporarily stored in the upper cavity 22. The upper stirring shaft 6 rotates slowly, and the sewage in the upper cavity 22 is pre-stirred by the upper stirring rod 63; When the sewage in the lower cavity 23 is treated, the valve 5 is opened, and the sewage in the upper cavity 22 enters the lower cavity 23 through the valve 5, and then the valve 5 is closed; a certain amount of treatment reagent is added to the dosing tube 25, the lower stirring shaft 7 rotates rapidly, and the sewage in the lower cavity 23 is stirred by the lower stirring rod 72, and after the treatment is completed, it is discharged to the outside through the outlet pipe 26; in the process of treating the sewage in the lower cavity 23, the sewage begins to gather again in the upper cavity 22, and is slowly pre-stirred, waiting to enter the lower cavity 23 next time.

[0032] Embodiment 2: Based on the above embodiment 1, Figures 1 to 5 ,as well as Figure 7 As shown, the outer conical section 11 is fixedly connected to the main body of the outer cylinder 1 by a flange and bolts, so as to facilitate the removal of the outer conical section 11. A positioning cylinder 15 is fixed at the center of the upper end of the outer conical section 11. The positioning cylinder 15 is fitted on the support cylinder 24, and the positioning cylinder 15 is covered outside the reduction motor 61 to protect the reduction motor 61. The lower end of the positioning cylinder 15 has a conical pressing plate 151. When the outer conical section 11 is fixed, the conical pressing plate 151 at its lower end is just pressed on the inner conical section 21 and the conical filter 3 to fix the conical filter 3.

[0033] The lower end of the conical filter 3 has a water retaining edge 31 to ensure that sewage passes through the conical filter 3 as much as possible and enters the inner cylinder 2. The inner conical section 21 has a circle of bosses 212, and the lower end of the conical filter 3 abuts against the bosses 212, which cooperates with the pressing effect of the upper conical pressure plate 151 to ensure the stability of the conical filter 3.

[0034] Embodiment three: Based on the above embodiment 1, Figure 4 and Figure 6As shown, in this embodiment, the reducer 8 includes a shell 81 fixed to the lower side of the partition 4, and the upper stirring shaft 6 and the lower stirring shaft 7 are coaxially arranged, and the proximal ends are both located in the shell 81. A countersunk hole is provided at the upper end of the lower stirring shaft 7, and a bearing 83 is installed in the countersunk hole. The lower end of the upper stirring shaft 6 is sleeved in the bearing 83; the upper stirring shaft 6 and the lower stirring shaft 7 are supported by the bearing 83 to rotate relative to each other, reducing the number of bearings 83 used. The lower end of the upper stirring shaft 6 and the upper end of the lower stirring shaft 7 are connected by a gear set 82, so that the rotation speed of the lower stirring shaft 7 is greater than the rotation speed of the upper stirring shaft 6. The lower end of the lower stirring shaft 7 is rotatably connected to a support seat 71 through a bearing, and the support seat 71 is fixed to the bottom of the inner cylinder 2 to realize the rotation support of the lower end of the lower stirring shaft 7, thereby enhancing the stability of the stirring shaft.

[0035] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An integrated device for treating domestic sewage, It is characterized in that include: An outer cylinder, wherein the upper end of the outer cylinder has an outer conical section; An inner cylinder is coaxially arranged in the outer cylinder; an inner conical section is provided at the upper end of the inner cylinder, and an annular feed channel is formed between the inner conical section and the outer conical section; A conical filter screen is mounted on the inner conical section; the inner conical section is provided with a through groove opposite to the conical filter screen; A partition is fixed in the inner cylinder to divide the inner cavity of the inner cylinder into an upper cavity and a lower cavity; a valve connecting the upper cavity and the lower cavity is installed on the partition; An upper stirring shaft, rotatably mounted on the axis of the upper cavity; The lower stirring shaft is rotatably mounted on the axis of the lower cavity; a reducer is transmission-connected between the lower stirring shaft and the upper stirring shaft, so that the rotation speed of the lower stirring shaft is greater than that of the upper stirring shaft.

2. The integrated domestic sewage treatment device according to claim 1, characterized in that: The lower end of the outer cylinder is provided with a discharge port, and the upper end of the outer conical section is provided with a feed port.

3. The integrated domestic sewage treatment device according to claim 1 is characterized in that: The upper end of the inner conical section is provided with a support cylinder, and a reduction motor for driving the upper stirring shaft is fixed on the support cylinder.

4. The integrated domestic sewage treatment device according to claim 3 is characterized in that: The upper end of the outer conical section is provided with a positioning cylinder, which is sleeved on the supporting cylinder and covered outside the reduction motor; the lower end of the positioning cylinder is provided with a conical pressing plate, which presses on the upper end of the inner conical section and the conical filter.

5. The integrated domestic sewage treatment device according to claim 1 is characterized in that: The outer conical section is fixedly connected to the main body of the outer cylinder through a flange and bolts.

6. The integrated domestic sewage treatment device according to claim 1, characterized in that: The lower end of the conical filter screen is provided with a circle of water retaining edge; the inner conical section is provided with a circle of bosses which abut against the lower end of the conical filter screen.

7. The integrated domestic sewage treatment device according to claim 1 is characterized in that: A cleaning rod is fixed on the upper stirring shaft, and an inclined brush that matches the inner wall of the conical filter is fixed on the cleaning rod; an upper stirring rod connected to the upper stirring shaft is arranged below the cleaning rod; A lower stirring rod is fixed on the lower stirring shaft.

8. The integrated domestic sewage treatment device according to claim 1, characterized in that: The reducer comprises a shell fixed on the lower side of the partition, the lower end of the upper stirring shaft and the upper end of the lower stirring shaft are both located in the shell, and the lower end of the upper stirring shaft and the upper end of the lower stirring shaft are connected through a gear set.

9. The integrated domestic sewage treatment device according to claim 8, characterized in that: The upper stirring shaft and the lower stirring shaft are arranged coaxially, a countersunk hole is opened at the upper end of the lower stirring shaft, and the lower end of the upper stirring shaft is located in the countersunk hole; a bearing is installed between the lower end of the upper stirring shaft and the inner wall of the countersunk hole; the lower end of the lower stirring shaft is rotatably connected to a support seat, and the support seat is fixed to the bottom of the inner cylinder.

10. The integrated domestic sewage treatment device according to claim 1, characterized in that: A mounting block is fixed on one side of the inner cylinder, and the outer side of the mounting block is an arc-shaped surface that matches the inner wall of the outer cylinder; the valve is installed in the mounting block; A dosing tube and a water outlet tube are inserted through the installation block, the inner ends of the dosing tube and the water outlet tube penetrate into the lower cavity of the outer cylinder, and the outer ends of the dosing tube and the water outlet tube penetrate out of the outer cylinder.

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