Device and method for producing calcium hydroxide from solid waste

Abstract

The invention relates to the technical field of calcium hydroxide production, and particularly discloses a device and method for producing calcium hydroxide from solid waste, the device comprises a stirring barrel, a feeding port and a discharging port, the feeding port is connected to one side of the stirring barrel, calcium oxide is conveyed into the stirring barrel through the feeding port, and the discharging port is connected to the other side of the stirring barrel; the discharging port is used for conveying calcium hydroxide after production is completed out of the stirring barrel for the next production step, the weight monitoring assembly is connected into the stirring barrel, and when the feeding port conveys the raw material calcium oxide into the stirring barrel, the weight monitoring assembly can monitor the weight of the raw material in real time; the control assembly is connected to one side of the stirring barrel, the control assembly is used for storing water and controlling the water delivery amount, the water injection amount is controlled in real time through the raw materials with different volumes and weights, and then excessive water is prevented from being injected into the stirring barrel; and product sintering and performance reduction caused by too high temperature of calcium hydroxide are prevented.

Description

Technical Field

[0001] The invention relates to the technical field of producing calcium hydroxide, in particular to a device and a method for producing calcium hydroxide using solid waste. Background Art

[0002] Calcium hydroxide is an inorganic compound with the chemical formula of , commonly known as slaked lime or hydrated lime, and is a white powdery solid. Calcium hydroxide has the general properties of an alkali, is a strong alkali, and is slightly soluble in water. Calcium hydroxide is widely used in industry, such as as a building material in the construction industry, and can also be used to make bleaching powder, hard water softeners, disinfectants, etc. Calcium hydroxide is used in the construction field to make concrete and mortar to improve the strength and stability of concrete. The production of calcium hydroxide mainly requires the use of a series of professional equipment such as digesters, grinders, and production line equipment.

[0003] In the production process of calcium hydroxide, water needs to be added and stirred. The purpose of adding water and stirring is to promote the reaction of calcium oxide and water under the strong stirring of the stirring rod to generate calcium hydroxide. This process includes the steps of crushing quicklime, preliminary digestion and complete digestion. By adding water and stirring, it is ensured that calcium oxide and water can fully react to generate calcium hydroxide. However, when adding water, the stirring speed does not change, which may cause excessive foam and heat accumulation in the production chamber and excessive temperature, thereby causing the calcium hydroxide temperature to be too high, which may cause product sintering and performance degradation. For this reason, we propose a device and method for producing calcium hydroxide using solid waste. Summary of the invention

[0004] The object of the present invention is to provide a device and method for producing calcium hydroxide from solid waste, so as to solve the above-mentioned problem that when adding water, the stirring speed does not change, which may cause excessive foam and heat accumulation in the production chamber and excessive temperature, thereby causing the calcium hydroxide temperature to be too high, which may cause product sintering and performance degradation.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device and method for producing calcium hydroxide from solid waste, comprising: a stirring barrel, a feed port and a discharge port, wherein the feed port is connected to one side of the stirring barrel, the feed port transports calcium oxide into the stirring barrel, the discharge port is connected to the other side of the stirring barrel, the discharge port is used to transport the calcium hydroxide after production to the outside of the stirring barrel for the next production step, a stirring member is connected to the stirring barrel, the stirring member is used to mix and stir calcium oxide and water, so that water and calcium oxide are mixed to generate calcium hydroxide; Also includes: The weight monitoring component is connected to the mixing barrel. When the raw material calcium oxide is transported from the feed port to the mixing barrel, the weight monitoring component can monitor the weight of the raw material in real time. A control component is connected to one side of the mixing barrel and is used to store water and control the water delivery amount; The conveying component is connected to the control component and is connected to the stirring barrel. The conveying component is used to convey water.

[0006] The stirring element comprises a groove, which is arranged at the top of the stirring barrel, in which a motor is fixedly installed, a rotating shaft is connected to the output shaft of the motor, and a stirring wheel is connected to the rotating shaft.

[0007] Among them, the weight monitoring component includes a monitoring slot, a gravity sensor is connected in the monitoring slot, a weighing plate is connected to the gravity sensor, and the gravity sensor is used to monitor the weight of the raw materials.

[0008] Among them, a starting slot is opened in the monitoring slot, a starting piece is arranged in the starting slot, the weighing plate is slidably connected with the starting slot, and the starting piece is used to start the control component.

[0009] Among them, the control component includes a water tank, which is arranged on one side of the mixing barrel. A plurality of connecting plates are arranged in the water tank, and the connecting plates divide the water tank into a plurality of water storage chambers. Water level monitoring components are connected to the plurality of water tanks.

[0010] The water level monitoring component comprises a moving groove, which is arranged in the water storage cavity, a sliding shaft is connected in the moving groove, a water level plate is connected to the sliding shaft, and a trigger component is connected in the moving groove.

[0011] Among them, the trigger part includes a rectangular groove, which is opened in the water tank and corresponds to the movable groove. A movable plate is connected in the rectangular groove, a closing button is connected to the movable plate, and an electric telescopic rod is connected to the bottom end of the movable plate.

[0012] The starting member includes a starting plate, which is connected in the starting slot and is used to control the switch of the electric telescopic rod.

[0013] Among them, the delivery component includes delivery pipe 1, delivery pipe 2 and delivery pipe 3, delivery pipe 1, delivery pipe 2 and delivery pipe 3 are all connected to one side of the water tank, and delivery pipe 1, delivery pipe 2 and delivery pipe 3 are connected to the mixing barrel, and valve 1, valve 2 and valve 3 are connected to delivery pipe 1, delivery pipe 2 and delivery pipe 3 respectively.

[0014] A method for producing calcium hydroxide from solid waste, comprising the steps of: Step 1: Add quicklime into the silo and evenly add it into the jaw crusher for crushing.

[0015] Step 2: The crushed quicklime is lifted to the lime silo on the upper part of the digester in the digestion workshop.

[0016] Step 3: Quicklime is evenly fed into the mixing barrel, and water is added to carry out a digestion reaction to generate calcium hydroxide emulsion.

[0017] The present invention has at least the following beneficial effects: by setting a weight monitoring component, a control component and a conveying component, the weight monitoring component is connected in the stirring barrel, when the feed port conveys the raw material calcium oxide into the stirring barrel, the weight monitoring component can monitor the weight of the raw material in real time, and then the stirring speed can be controlled according to the weight of the raw material monitored by the weight monitoring component, the control component is connected to one side of the stirring barrel, the control component is used to store water and control the water delivery amount, through the raw materials of different volume weights, and then the water injection amount is controlled in real time, thereby preventing too much water from being injected into the stirring barrel, thereby preventing the calcium hydroxide temperature from being too high, causing product sintering and performance degradation, the conveying component is connected to the control component, and the conveying component is connected to the stirring barrel, the conveying component is used to convey water, and water can be injected into the stirring barrel in turn through the conveying component, thereby preventing the calcium hydroxide reaction temperature in the stirring barrel from being too high, and ensuring multiple water injections to ensure that the raw materials and water in the stirring barrel can fully react and fuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the stirring barrel of the present invention; Figure 3 This is a structural schematic diagram of a weight monitoring component of the present invention; Figure 4 This is a schematic diagram of the structure of the starter of the present invention; Figure 5 for Figure 4 A magnified schematic diagram of the middle A area; Figure 6 This is a schematic diagram of the water storage barrel structure of the present invention; Figure 7 It is a side sectional view of the water storage barrel of the present invention; Figure 8 This is a schematic diagram of the control component structure of the present invention; Fig. 9 for Figure 8 Enlarged schematic diagram of area B in the middle.

[0019] In the figure: 1. mixing barrel; 2. feed inlet; 3. discharge outlet; 4. water storage tank; 5. conveying assembly; 51. conveying pipe 1; 52. conveying pipe 2; 53. conveying pipe 3; 6. base; 7. stirring element; 71. groove; 72. stirring wheel; 73. rotating shaft; 8. motor; 9. weight monitoring assembly; 91. monitoring slot; 92. gravity sensor; 10. weighing plate; 11. starting slot; 12. starting element; 121. starting plate; 122. torsion spring; 13. valve 1; 14. valve 2; 15. valve 3; 16. water injection pipe; 17. connecting plate; 18. water level monitoring element; 181. moving slot; 182. sliding shaft; 19. water level plate; 20. water storage chamber; 21. trigger element; 22. rectangular slot; 23. closing key; 24. moving plate; 25. electric telescopic rod; 26. control assembly. DETAILED DESCRIPTION

[0020] 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.

[0021] Embodiment 1 See also Figures 1 to 9 The present invention provides a technical solution: a device and method for producing calcium hydroxide from solid waste, comprising: a stirring barrel 1, a feed port 2 and a discharge port 3, wherein the feed port 2 is connected to one side of the stirring barrel 1, the feed port 2 conveys calcium oxide into the stirring barrel 1, the discharge port 3 is connected to the other side of the stirring barrel 1, the discharge port 3 is used to convey the calcium hydroxide after production to the outside of the stirring barrel 1 for the next production step, a stirring member 7 is connected to the stirring barrel 1, the stirring member 7 is used to mix and stir calcium oxide and water, so that water and calcium oxide are mixed to generate calcium hydroxide, the bottom end of the stirring barrel 1 is arranged on a base 6, and the base 6 is used to support and fix the stirring barrel 1; Also includes: The weight monitoring component 9 is connected to the mixing barrel 1. When the feed port 2 delivers the raw material calcium oxide into the mixing barrel 1, the weight monitoring component 9 can monitor the weight of the raw material in real time, and then the mixing speed can be controlled according to the weight of the raw material monitored by the weight monitoring component 9; The control component 26 is connected to one side of the mixing barrel 1. The control component 26 is used to store water and control the water delivery amount. The water injection amount is controlled in real time by raw materials of different volumes and weights, thereby preventing too much water from being injected into the mixing barrel 1, thereby preventing the calcium hydroxide temperature from being too high, resulting in product sintering and performance degradation; The conveying component 5 is connected to the control component 26, and the conveying component 5 is connected to the mixing barrel 1. The conveying component 5 is used to convey water. Water can be injected into the mixing barrel 1 in sequence through the conveying component 5, thereby preventing the temperature of the calcium hydroxide reaction in the mixing barrel 1 from being too high, and ensuring multiple water injections to ensure that the raw materials in the mixing barrel 1 can fully react and fuse with water.

[0022] The stirring member 7 includes a groove 71, which is opened at the top of the stirring barrel 1. A motor 8 is fixedly installed in the groove 71. The groove 71 can be provided to protect the motor 8, thereby extending the service life of the motor 8. A rotating shaft 73 is connected to the output shaft of the motor 8, and a stirring wheel 72 is connected to the rotating shaft 73. When adding materials into the stirring barrel 1, the motor 8 is started, and the motor 8 reaches the rotating shaft 73 and rotates. The rotation of the rotating shaft 73 can drive the stirring wheel 72 to rotate, and the motor 8 is a servo motor 8 that can automatically control the rotation speed.

[0023] The weight monitoring component 9 includes a monitoring slot 91, in which a gravity sensor 92 is connected, and a weighing plate 10 is connected to the gravity sensor 92. The gravity sensor 92 is used to monitor the weight of the raw materials. By setting the monitoring slot 91, the gravity sensor 92 can be protected, thereby extending the service life of the gravity sensor 92. When the gravity sensor 92 detects that there is material on the weighing plate 10, it triggers the motor 8 to slow down, thereby preventing the stirring wheel 72 from moving too fast during the stirring reaction of the raw materials, resulting in excessive temperature of the calcium hydroxide.

[0024] A starting slot 11 is provided in the monitoring slot 91, and a starting piece 12 is provided in the starting slot 11. The weighing plate 10 is slidably connected to the starting slot 11, and the starting piece 12 is used to start the control component 26. When the weighing plate 10 is squeezed by the raw materials, the weighing plate 10 is triggered to start, and then the starting piece 12 can trigger the control component 26 to inject a corresponding amount of water into the mixing barrel 1 to prevent excessive water injection at one time, resulting in excessive temperature of calcium hydroxide, resulting in product sintering and performance degradation.

[0025] The control component 26 includes a water tank 4, which is arranged on one side of the mixing barrel 1. A plurality of connecting plates 17 are arranged in the water tank 4. The connecting plates 17 divide the water tank 4 into a plurality of water storage chambers 20. A water level monitoring component 18 is connected to each of the plurality of water tanks 4. Water can be stored by setting up the water tank 4. By setting up more water storage chambers 20, the water in the water tank 4 can be divided into multiple parts, and then water can be injected into the mixing barrel 1 multiple times. The water level in the water storage chamber 20 can be controlled in real time by the water level monitoring component 18.

[0026] The water level monitoring component 18 includes a movable groove 181, which is opened in the water storage chamber 20. A sliding shaft 182 is connected to the movable groove 181, and a water level plate 19 is connected to the sliding shaft 182. A trigger component 21 is connected to the movable groove 181. The water level plate 19 will move vertically on the sliding shaft 182 along with the water level in the water storage chamber 20, so as to monitor the water level in the water storage chamber 20 in real time. A water injection pipe 16 is connected to one side of the water tank 4 to inject water into the water storage chamber 20 in time to ensure the amount of water in the water storage chamber 20.

[0027] The trigger member 21 includes a rectangular groove 22, which is opened in the water tank 4 and corresponds to the movable groove 181. A movable plate 24 is connected in the rectangular groove 22, and a closing button 23 is connected to the movable plate 24. The bottom end of the movable plate 24 is connected to an electric telescopic rod 25. The weight detected by the gravity sensor 92 and the triggering of the starting member 12 can start the electric telescopic rod 25 in the rectangular groove 22, so that the electric telescopic rod 25 moves vertically, and then the electric telescopic rod 25 drives the closing button 23 on the movable plate 24 to move. When water needs to be injected into the mixing barrel 1, the water level plate 19 drops as the water level drops, thereby triggering the closing button 23.

[0028] The starting member 12 includes a starting plate 121, which is connected to the starting slot 11. The starting plate 121 is used to control the switch of the electric telescopic rod 25. The electric telescopic rod 25 is started by the starting plate 121. The electric telescopic rod 25 can control the position of the closing button 23 in several water storage chambers 20, thereby ensuring the amount of water injection and preventing excessive water injection. A torsion spring 122 is connected to the starting plate 121, so that the starting plate 121 can automatically recover for the next use.

[0029] A method for producing calcium hydroxide from solid waste, comprising the steps of: Step 1: Add quicklime into the silo and evenly add it into the jaw crusher for crushing.

[0030] Step 2: The crushed quicklime is lifted to the lime silo on the upper part of the digester in the digestion workshop.

[0031] Step 3: Quicklime is evenly fed into the mixing barrel 1, and water is added to perform a digestion reaction to generate calcium hydroxide emulsion.

[0032] Embodiment 2 The delivery assembly 5 includes a delivery pipe 1 51, a delivery pipe 2 52 and a delivery pipe 3 53. The delivery pipe 1 51, the delivery pipe 2 52 and the delivery pipe 3 53 are all connected to one side of the water storage tank 4, and the delivery pipe 1 51, the delivery pipe 2 52 and the delivery pipe 3 53 are connected to the mixing barrel 1. The delivery pipe 1 51, the delivery pipe 2 52 and the delivery pipe 3 53 can sequentially transport the water in the water storage chamber 20 to the mixing barrel 1, thereby preventing too much water from being injected into the mixing barrel 1 at one time.

[0033] The delivery pipe 1 51, the delivery pipe 2 52 and the delivery pipe 3 53 are respectively connected with valve 1 13, valve 2 14 and valve 3 15. The closing keys 23 in the water storage chamber 20 respectively control the opening of valve 1 13, valve 2 14 and valve 3 15. One of the closing keys 23 closes valve 13 and opens valve 2 14 at the same time. The second closing key 23 can control the closing of valve 2 14 and open valve 3 15 at the same time. The third closing key 23 can directly close valve 3 15, and then water can be injected into the mixing barrel 1 in sequence.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device and method for producing calcium hydroxide from solid waste, comprising: A stirring barrel (1), a feed port (2) and a discharge port (3), wherein the feed port (2) is connected to one side of the stirring barrel (1), and the feed port (2) transports calcium oxide into the stirring barrel (1); the discharge port (3) is connected to the other side of the stirring barrel (1), and the discharge port (3) is used to transport the calcium hydroxide after production to the outside of the stirring barrel (1) for the next production step; a stirring member (7) is connected to the stirring barrel (1), and the stirring member (7) is used to mix and stir calcium oxide and water, so that the water and calcium oxide are mixed to generate calcium hydroxide; It is characterized by: also including: A weight monitoring component (9), the weight monitoring component (9) being connected to the stirring barrel (1), and when the feed port (2) delivers the raw material calcium oxide into the stirring barrel (1), the weight monitoring component (9) can monitor the weight of the raw material in real time; A control component (26), the control component (26) being connected to one side of the mixing barrel (1), the control component (26) being used to store water and control the amount of water delivered; A conveying component (5), the conveying component (5) is connected to the control component (26), and the conveying component (5) is connected to the stirring barrel (1), and the conveying component (5) is used to convey water.

2. The device and method for producing calcium hydroxide from solid waste according to claim 1, characterized in that: The stirring member (7) comprises a groove (71), wherein the groove (71) is formed at the top of the stirring barrel (1), a motor (8) is fixedly mounted in the groove (71), a rotating shaft (73) is connected to the output shaft of the motor (8), and a stirring wheel (72) is connected to the rotating shaft (73).

3. The device and method for producing calcium hydroxide from solid waste according to claim 2, characterized in that: The weight monitoring component (9) comprises a monitoring slot (91), a gravity sensor (92) is connected inside the monitoring slot (91), a weighing plate (10) is connected to the gravity sensor (92), and the gravity sensor (92) is used to monitor the weight of the raw materials.

4. The device and method for producing calcium hydroxide from solid waste according to claim 3, characterized in that: A starting slot (11) is provided in the monitoring slot (91), a starting member (12) is provided in the starting slot (11), the weighing plate (10) is slidably connected to the starting slot (11), and the starting member (12) is used to start the control component (26).

5. The device and method for producing calcium hydroxide from solid waste according to claim 4, characterized in that: The control assembly (26) comprises a water storage tank (4), the water storage tank (4) being arranged on one side of the mixing barrel (1), a plurality of connecting plates (17) being arranged in the water storage tank (4), the connecting plates (17) dividing the water storage tank (4) into a plurality of water storage chambers (20), and a water level monitoring component (18) being connected to each of the plurality of water storage tanks (4).

6. The device and method for producing calcium hydroxide from solid waste according to claim 5, characterized in that: The water level monitoring component (18) comprises a movable groove (181), the movable groove (181) being disposed in the water storage chamber (20), a sliding shaft (182) being connected to the movable groove (181), a water level plate (19) being connected to the sliding shaft (182), and a trigger component (21) being connected to the movable groove (181).

7. The device and method for producing calcium hydroxide from solid waste according to claim 6, characterized in that: The trigger member (21) comprises a rectangular groove (22), the rectangular groove (22) being formed in the water storage tank (4), and the rectangular groove (22) corresponding to the movable groove (181), a movable plate (24) being connected in the rectangular groove (22), a closing key (23) being connected to the movable plate (24), and an electric telescopic rod (25) being connected to the bottom end of the movable plate (24).

8. The device and method for producing calcium hydroxide from solid waste according to claim 4, characterized in that: The starting member (12) comprises a starting plate (121), wherein the starting plate (121) is connected to the starting slot (11), and the starting plate (121) is used to control the switch of the electric telescopic rod (25).

9. The device and method for producing calcium hydroxide from solid waste according to claim 1, characterized in that: The delivery assembly (5) comprises a delivery pipe 1 (51), a delivery pipe 2 (52) and a delivery pipe 3 (53); the delivery pipe 1 (51), the delivery pipe 2 (52) and the delivery pipe 3 (53) are all connected to one side of the water storage tank (4); the delivery pipe 1 (51), the delivery pipe 2 (52) and the delivery pipe 3 (53) are connected to the mixing barrel (1); the delivery pipe 1 (51), the delivery pipe 2 (52) and the delivery pipe 3 (53) are respectively connected to a valve 1 (13), a valve 2 (14) and a valve 3 (15).

10. A method for producing calcium hydroxide using the solid waste described in claim 1, comprising the steps of: Step 1: Add quicklime into the silo and evenly add it into the jaw crusher for crushing. Step 2: The crushed quicklime is lifted to the lime silo on the upper part of the digester in the digestion workshop. Step 3: Quicklime is evenly fed into the mixing barrel (1), and water is added to carry out a digestion reaction to generate calcium hydroxide emulsion.

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