Kitchen garbage composting device based on sand blasting treatment process

Abstract

The invention discloses a kitchen garbage composting device based on a sand blasting treatment process, and relates to the technical field of equipment for manufacturing fertilizers by utilizing household garbage, the kitchen garbage composting device comprises a sand blasting chamber, the upper part of the sand blasting chamber is provided with a screen mesh channel A communicated with the external atmosphere; a screen mesh channel B is arranged at the lower part of the sand blasting chamber; the sieve pore drift diameter of the sieve mesh channel A and the sieve pore drift diameter of the sieve mesh channel B are both smaller than the grain size of sand, and the sieve pore drift diameter of the sieve mesh channel A is smaller than the sieve pore drift diameter of the sieve mesh channel B; a heating device is mounted at the bottom end of the sand blasting chamber; the recovery chamber is positioned below the sand blasting chamber and is communicated with the screen mesh channel B; the recovery chamber is used for collecting crushed garbage passing through the screen mesh channel B; the ducted fan is mounted at the top of the sand blasting chamber, and an air inlet of the ducted fan is communicated with the external atmosphere. The kitchen garbage crushing efficiency is higher, the particle size of the crushed kitchen garbage is smaller, and the crushing capacity for fibrous garbage is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment for making fertilizer from household waste, and in particular to a kitchen waste composting device based on a sandblasting process. The international patent classification number that may be involved is C09F9 / 02. Background Art

[0002] At present, with the improvement of environmental awareness, kitchen waste composters have begun to enter the C-end user market. Existing kitchen waste composters use a low-speed, high-torque crushing device driven by a reduction motor to crush the garbage, and at the same time heat and dry the garbage, and finally crush the kitchen waste, dry it, and oxidize it into fertilizer. This way of crushing garbage has a large enough torque to crush hard bones or plastic garbage, but it is easy to cause entanglement and difficult to crush fiber-containing garbage. In addition, due to the need for high torque, the speed of the crushing arm is very low, which takes a long time and the crushed particles are larger. The smaller the particle size, the more conducive it is for the kitchen waste fertilizer to be decomposed by microorganisms in the soil and converted into small molecular nutrients that can be absorbed by plants.

[0003] The sandblasting process is a common process used in industry to remove rust or coating on metal surfaces. It can also harden metal surfaces. It uses a high-speed airflow mixed with sand to impact the metal surface. With the improvement of processing technology, the speed of small high-speed digital ducted fans used in vacuum cleaners and hair dryers has reached 100,000 or even close to 200,000 revolutions. It is small in size, has a high wind speed, and effectively controls noise. The present invention aims to use a ducted fan combined with an industrial sandblasting process to construct a new device suitable for crushing household kitchen waste, so as to improve the crushing efficiency of kitchen waste, enhance the crushing ability of different garbage, especially fibrous garbage, and reduce the particle size of the kitchen waste after crushing. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a kitchen waste composting device based on a sandblasting process in view of the above-mentioned technical deficiencies, which has a higher efficiency in crushing kitchen waste, a smaller particle size of the crushed kitchen waste, and a stronger ability to crush fibrous waste.

[0005] The present invention provides a kitchen waste composting device based on a sandblasting process, comprising: A sandblasting room, wherein the sandblasting room is configured to hold garbage to be crushed and sand materials; an A screen channel connected to the external atmosphere is provided at the upper part of the sandblasting room; a B screen channel is provided at the lower part of the sandblasting room; the sieve hole diameters of the A screen channel and the B screen channel are both smaller than the sand material particle diameter, and the sieve hole diameter of the A screen channel is smaller than the sieve hole diameter of the B screen channel; a heating device is installed at the bottom end of the sandblasting room, and the heating device is used to dry the moisture in the garbage and sand materials; A recovery chamber, the recovery chamber is located below the sandblasting chamber and is connected to the B screen channel; the recovery chamber is used to collect the crushed garbage passing through the B screen channel; The ducted fan is installed on the top of the sandblasting room, and the air inlet of the ducted fan is connected to the external atmosphere; the air outlet of the ducted fan is located in the sandblasting room and points to the bottom of the sandblasting room.

[0006] To further optimize the technical solution, the A screen channel is externally installed and covered with an activated carbon module, and the activated carbon module is used to absorb the odor generated when the garbage is heated and crushed.

[0007] To further optimize the technical solution, the hardness of the material of the inner wall of the sandblasting chamber is higher than that of the sand material; or the inner wall of the sandblasting chamber is coated with a coating having a harderness higher than that of the sand material.

[0008] To further optimize the technical solution, the A screen channel and the B screen channel are both formed by screens that are detachably connected to the side walls of the sandblasting chamber.

[0009] To further optimize the technical solution, the side wall of the sandblasting chamber is connected to a feed channel; the feed channel opening is equipped with an anti-overflow cover that opens unidirectionally toward the sandblasting chamber.

[0010] To further optimize the technical solution, the sandblasting chamber is divided into two detachable and butt-jointed sections in the vertical direction.

[0011] To further optimize the technical solution, a discharge chamber is provided at the bottom of the recovery chamber, and the discharge chamber is equipped with an openable sealed door; a discharge box is installed in the discharge chamber and can be taken out from the sealed door.

[0012] To further optimize the technical solution, a discharge channel is connected to the bottom of the recovery chamber; a valve for opening and closing the discharge channel is installed in the discharge channel.

[0013] Different from the existing kitchen waste composting device, the present invention uses a ducted fan to spray high-speed airflow in the sandblasting room, which drives the sand to move violently in the sandblasting room, and performs high-speed impact crushing on the kitchen waste. When the kitchen waste particles are smaller than the B screen channel, they pass through the B screen channel to enter the recovery room; because the sand cannot pass through the A screen channel and the B screen channel, the sand is retained in the sandblasting room. This technical solution of using the high-speed airflow with sand to impact the kitchen waste can efficiently crush various forms of hard, soft, and fibrous kitchen waste. The smaller the aperture of the B screen channel, the smaller the size of the discharged garbage particles. In addition, due to the violent tumbling movement of the sand in the sandblasting room, the A screen channel and the B screen channel will be flushed in real time, which can prevent the channels from being blocked by the crushed garbage. The heating device can dry the soup and water of the kitchen waste, which can prevent the sand from being adhered. After the ducted fan is started, the high-speed airflow and high-temperature heating can promote the rapid evaporation of water.

[0014] Other technical effects of the present invention will become gradually clear as the embodiments are developed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a simplified schematic diagram of the structure of Example 1; Figure 2 This is a simplified schematic diagram of the structure of Example 2.

[0016] In the figure, 1. sandblasting room; 2. screen channel A; 3. screen channel B; 4. heating device; 5. recovery room; 6. duct fan; 7. activated carbon module; 8. feed channel; 9. anti-overflow cover; 10. discharge chamber; 11. sealing door; 12. drop box; 13. discharge channel; 14. valve. DETAILED DESCRIPTION

[0017] like Figure 1 , Figure 2 As shown: A kitchen waste composting device based on a sandblasting process, comprising: A sandblasting room 1, wherein the sandblasting room 1 is configured to hold garbage to be crushed and sand materials; an A screen channel 2 connected to the external atmosphere is provided at the upper part of the sandblasting room 1; a B screen channel 3 is provided at the lower part of the sandblasting room 1; the sieve hole diameters of the A screen channel 2 and the B screen channel 3 are both smaller than the sand material particle diameter, and the sieve hole diameter of the A screen channel 2 is smaller than the sieve hole diameter of the B screen channel 3; a heating device 4 is installed at the bottom end of the sandblasting room 1, and the heating device 4 is used to dry the moisture in the garbage and sand materials; A recovery chamber 5, the recovery chamber 5 is located below the sandblasting chamber 1 and is connected to the B screen channel 3; the recovery chamber 5 is used to collect the crushed garbage passing through the B screen channel 3; The ducted fan 6 is installed on the top of the sandblasting chamber 1, and the air inlet of the ducted fan 6 is connected to the external atmosphere; the air outlet of the ducted fan 6 is located in the sandblasting chamber 1 and points to the bottom of the sandblasting chamber 1.

[0018] Since the air inlet of the ducted fan 6 is located outside the sandblasting room 1 and the air outlet is located inside the sandblasting room 1, the air outlet pressure is higher than the inner cavity of the sandblasting room 1, so the sand will not enter the ducted fan 6 to cause blade damage. The sieve hole diameter of the B screen channel 3 is smaller than that of the A screen channel 2, so the crushed garbage will be discharged from the lower B screen channel 3 first under the action of gravity as the particle size of the impacted garbage becomes smaller and smaller.

[0019] The heating device 4 can be selected from existing technical solutions such as resistance wire, electric heating tube, quartz tube, PTC heater, etc.

[0020] To further optimize this embodiment, the A screen channel 2 is externally covered with an activated carbon module 7, which is used to absorb the odor generated when the garbage is heated and crushed. The ratio of the activated carbon module 7 to the sandblasting chamber 1 in the figure does not represent the actual size ratio. Since a larger air volume and a higher ability to absorb odor are required, the volume of the activated carbon module 7 is larger than that shown in the figure.

[0021] To further optimize this embodiment, the hardness of the material of the inner wall of the sandblasting chamber 1 is higher than that of the sand; or the inner wall of the sandblasting chamber 1 is coated with a coating with a harderness higher than that of the sand, wherein the coating may be a chrome-plated layer, so as to prevent wear of the inner wall of the sandblasting chamber 1.

[0022] To further optimize this embodiment, the A screen channel 2 and the B screen channel 3 are both formed by screens detachably connected to the side wall of the sandblasting chamber 1. The screens can be made of stainless steel mesh and can be disassembled and replaced when worn.

[0023] like Figure 1 As shown, the present embodiment is further optimized, the side wall of the sandblasting chamber 1 is connected with a feed channel 8; the feed channel 8 is equipped with an anti-overflow cover 9 which is opened one-way toward the sandblasting chamber 1.

[0024] like Figure 2 As shown, the present embodiment is further optimized, and the sandblasting chamber 1 is divided into two detachable butt-jointed sections in the vertical direction.

[0025] The above two optimization schemes for the structure of the sandblasting room 1 are both for facilitating the placement of kitchen waste into the sandblasting room 1 .

[0026] like Figure 2 As shown, this embodiment is further optimized, a discharge chamber 10 is provided at the bottom of the recovery chamber 5, and the discharge chamber 10 is equipped with an openable sealed door 11; a discharge box 12 which can be taken out from the sealed door 11 is installed in the discharge chamber 10.

[0027] like Figure 1 As shown, this embodiment is further optimized, the bottom of the recovery chamber 5 is connected to a discharge channel 13; the discharge channel 13 is equipped with a valve 14 for opening and closing the discharge channel 13.

[0028] The above two optimization schemes of the recovery chamber 5 are both for discharging the crushed kitchen waste from the recovery chamber 5 .

[0029] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A kitchen waste composting device based on sandblasting process, characterized in that: include: A sandblasting room, wherein the sandblasting room is configured to hold garbage to be crushed and sand materials; an A screen channel connected to the external atmosphere is provided at the upper part of the sandblasting room; a B screen channel is provided at the lower part of the sandblasting room; the sieve hole diameters of the A screen channel and the B screen channel are both smaller than the sand material particle diameter, and the sieve hole diameter of the A screen channel is smaller than the sieve hole diameter of the B screen channel; a heating device is installed at the bottom end of the sandblasting room, and the heating device is used to dry the moisture in the garbage and sand materials; A recovery chamber, the recovery chamber is located below the sandblasting chamber and is connected to the B screen channel; the recovery chamber is used to collect the crushed garbage passing through the B screen channel; The ducted fan is installed on the top of the sandblasting room, and the air inlet of the ducted fan is connected to the external atmosphere; the air outlet of the ducted fan is located in the sandblasting room and points to the bottom of the sandblasting room.

2. The kitchen waste composting device based on sandblasting process according to claim 1 is characterized in that: The A screen channel is externally installed and covered with an activated carbon module, and the activated carbon module is used to absorb the odor generated when the garbage is heated and crushed.

3. The kitchen waste composting device based on sandblasting process according to claim 1 or 2, characterized in that: The hardness of the material of the inner wall of the sandblasting chamber is higher than that of the sand material; or the inner wall of the sandblasting chamber is coated with a coating with a harderness higher than that of the sand material.

4. The kitchen waste composting device based on sandblasting process according to claim 1 is characterized in that The A screen channel and the B screen channel are both formed by screens that are detachably connected to the side walls of the sandblasting chamber.

5. The kitchen waste composting device based on sandblasting process according to claim 1 is characterized in that : The side wall of the sandblasting chamber is connected to a feed channel; the feed channel opening is equipped with an anti-overflow cover that opens one-way to the sandblasting chamber.

6. The kitchen waste composting device based on sandblasting process according to claim 1, characterized in that The sandblasting chamber is divided into two sections which can be detached and connected in the vertical direction.

7. The kitchen waste composting device based on sandblasting process according to claim 1, characterized in that : A discharge chamber is provided at the bottom of the recovery chamber, and the discharge chamber is equipped with an openable sealed door; a material box is installed in the discharge chamber and can be taken out from the sealed door.

8. The kitchen waste composting device based on sandblasting process according to claim 1, characterized in that : The bottom of the recovery chamber is connected to a discharge channel; the discharge channel is equipped with a valve for opening and closing the discharge channel.

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