Stirring device and method for industrial sand grains

Abstract

The invention discloses a stirring device for industrial sand grains, relates to the field of industrial sand grain processing, and solves the technical problem that an existing stirrer is low in stirring efficiency and is not beneficial to full mixing of materials. The device comprises a double-shaft stirring machine body, a first spiral feeding pipe and a second spiral feeding pipe, the first spiral feeding pipe and the second spiral feeding pipe are both installed above a feeding port of the double-shaft stirring machine body, and a plurality of feeding holes are evenly formed in the first spiral feeding pipe and the second spiral feeding pipe. And the feeding hole faces the double-shaft stirring machine body. The invention further discloses a stirring method for the industrial sand grains. The production efficiency is improved, manpower is saved, advanced burdening is not needed, and full stirring is achieved.

Description

Technical Field

[0001] The invention relates to the field of industrial sand processing, and more particularly to a stirring device and method for industrial sand. Background Art

[0002] After the casting mold is finished and the workpiece is taken out, the crushed sand can be recycled. When recycling, the sand needs to be crushed first, and then the crushed sand is mixed with auxiliary materials (such as coal powder, clay) by a mixer to obtain mixed sand particles. When mixing, the current mixer puts the corresponding proportion of crushed sand and auxiliary materials into the mixer, and then starts the mixer. However, these mixing efficiency is low, which is not conducive to the full mixing of materials. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a stirring device and method for industrial sand in view of the deficiencies in the prior art, so as to solve the technical problem that the existing mixer has low stirring efficiency and is not conducive to sufficient mixing of materials.

[0004] The present invention discloses a stirring device for industrial sand, which comprises a double-shaft stirring body, a first spiral feeding pipe, a second spiral feeding pipe and a controller. The first spiral feeding pipe and the second spiral feeding pipe are both installed above the feeding port of the double-shaft stirring body. The first spiral feeding pipe and the second spiral feeding pipe are both electrically connected to the controller. The first spiral feeding pipe and the second spiral feeding pipe are both provided with a plurality of evenly arranged feeding holes, and the feeding holes face the double-shaft stirring body.

[0005] As a further improvement, the twin-shaft mixer body is provided with two stirring shafts rotating in opposite directions, and a plurality of blades are installed on each of the two stirring shafts. A first motor and a transmission box are installed on one side of the twin-shaft mixer body, and the first motor is connected to the two stirring shafts through the transmission box, and the first motor is electrically connected to an external power supply.

[0006] Furthermore, the first spiral feeding tube is transmission-connected to a second motor, the second spiral feeding tube is transmission-connected to a third motor, and both the second motor and the third motor are electrically connected to a controller.

[0007] Furthermore, a water supply pipe is installed on the double-shaft mixer body, and the water supply pipe is connected to an external water source. A control valve is installed in the water supply pipe, and the control valve is electrically connected to the controller.

[0008] Furthermore, one end of the first spiral feeding tube is provided with a first feeding port connected to the interior thereof, a first discharge door is provided between the first feeding port and the first spiral feeding tube, and the first discharge door is electrically connected to the controller.

[0009] Furthermore, one end of the second spiral feeding tube is provided with a second feeding port connected to the interior thereof, and the second feeding port is provided with a second discharge door, and the second discharge door is electrically connected to the controller.

[0010] Furthermore, a first weighing sensor is installed on the first unloading door, and a second weighing sensor is installed on the second unloading door. Both the first weighing sensor and the second weighing sensor are electrically connected to the controller.

[0011] A method according to the above-mentioned stirring device for industrial sand, the method comprising:

[0012] Step 1: Start the double-shaft mixing machine, the first spiral feeding pipe and the second spiral feeding pipe at the same time;

[0013] Step 2: providing the first material to the first feed port, providing the second material to the second feed port, the controller obtains the first weight value of the first material accumulated on the first discharge door through the first weighing sensor, and the controller obtains the second weight value of the second material accumulated on the second discharge door through the second weighing sensor;

[0014] Step 3: When the first weight value is equal to a preset first weight threshold, the controller opens the first discharge door to allow the first spiral feeding pipe to convey the first material to the biaxial mixer body, and at the same time, the controller opens the control valve to add a preset volume of water into the biaxial mixer body, and the biaxial mixer body stirs the first material and water in the body according to a preset first stirring time;

[0015] Step 4: When the first stirring time ends and the second weight value is equal to the preset second weight threshold, the controller closes the first discharge door and opens the second discharge door to allow the second spiral feeding pipe to transport the second material to the double-shaft stirring body, and at the same time, the controller opens the control valve to add a preset volume of water into the double-shaft stirring body, and the double-shaft stirring body stirs the second material and water in the body according to the preset second stirring time;

[0016] Step 5: When the second mixing time ends, the controller closes the second discharge door and opens the sand discharge door of the twin-shaft mixing machine body.

[0017] As a further improvement, in step 2, a first delay time is set, and when the first weight value is greater than a preset first weight threshold, the first delay time starts timing; when the first delay time ends and the first weight value is still greater than the first weight threshold, a first unloading alarm is issued;

[0018] A second delay time is set. When the second weight value is greater than a preset second weight threshold, the second delay time starts timing. When the second delay time ends and the second weight value is still greater than the first weight threshold, a second unloading alarm is issued.

[0019] Furthermore, the first delay time and the second delay time are both 5S-10S.

[0020] Beneficial Effects

[0021] The advantages of the present invention are:

[0022] 1. The present invention is provided with a double-shaft mixer body, a first spiral feeding pipe and a second spiral feeding pipe, the first spiral feeding pipe and the second spiral feeding pipe are both installed above the feeding port of the double-shaft mixer body, the first spiral feeding pipe and the second spiral feeding pipe are both provided with a plurality of feeding holes for uniform material dropping, the feeding holes face the double-shaft mixer body, and the feeding of the double-shaft mixer body is adjusted according to the first weight value and the second weight value, thereby improving production efficiency, saving manpower, and achieving sufficient mixing without the need for advance batching.

[0023] 2. The present invention triggers an alarm mechanism according to the first weight value and the second weight value, so that when the first spiral feeding tube or the second spiral feeding tube fails, the staff can be promptly reminded to carry out maintenance, thereby achieving timeliness of fault detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the connection structure of the double-shaft mixer body, the first motor and the gearbox of the present invention;

[0025] Figure 2 It is a schematic structural diagram of the first spiral feeding tube of the present invention;

[0026] Figure 3 It is a schematic diagram of the structure of the second spiral feeding tube of the present invention.

[0027] Among them: 1-double-shaft mixing body, 2-first spiral feeding pipe, 3-second spiral feeding pipe, 4-feeding port, 5-feeding hole, 6-mixing shaft, 7-blade, 8-first motor, 9-transmission box, 10-first feed inlet, 11-second feed inlet. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the embodiments, but it does not constitute any limitation to the present invention. Any limited number of modifications made by anyone within the scope of the claims of the present invention are still within the scope of the claims of the present invention.

[0029] See also Figure 1-Figure 3The present invention is a stirring device for industrial sand, which includes a double-shaft stirring body 1, a first spiral feeding pipe 2 and a second spiral feeding pipe 3, wherein the first spiral feeding pipe 2 and the second spiral feeding pipe 3 have the same structure, and the first spiral feeding pipe 2 and the second spiral feeding pipe 3 are both installed above the feeding port 4 of the double-shaft stirring body 1, and the first spiral feeding pipe 2 and the second spiral feeding pipe 3 are both provided with a plurality of feeding holes 5 evenly arranged for uniform material dropping, and the feeding holes 5 face the double-shaft stirring body 1.

[0030] The double-shaft mixer body 1 is provided with two stirring shafts 6 rotating in opposite directions, and a plurality of blades 7 are installed on both stirring shafts 6. A first motor 8 and a transmission box 9 are installed on one side of the double-shaft mixer body 1. The first motor 8 is connected to the two stirring shafts 6 through the transmission box 9. The transmission box 9 is a dual-output shaft transmission box. The first motor 8 drives the two stirring shafts to rotate through the transmission box 9.

[0031] The first spiral feeding tube 2 is connected to the second motor, and the second spiral feeding tube 3 is connected to the third motor. The second motor drives the spiral shaft of the first spiral feeding tube 2 to rotate. The third motor drives the spiral shaft of the second spiral feeding tube 3 to rotate.

[0032] The twin-shaft mixer body 1 is also provided with a water supply pipe connected to an external water source, and a control valve is provided in the water supply pipe to control the on-off between the water supply pipe and the external water source.

[0033] The device also includes a controller, and the control valve, the first motor 8, the second motor and the third motor are all electrically connected to the controller.

[0034] The first spiral feeding tube 2 is provided with a first feeding port 10 connected to the interior thereof, and a first unloading door is provided between the first spiral feeding tube 2 and the first feeding port 10; the second spiral feeding tube 3 is provided with a second feeding port 11 connected to the interior thereof, and a second unloading door is provided between the second feeding port 11 of the second spiral feeding tube 3, and both the first unloading door and the second unloading door are electrically connected to the controller.

[0035] A first weighing sensor is installed on the first discharge door, and a second weighing sensor is installed on the second discharge door. The first weighing sensor and the second weighing sensor are both electrically connected to the controller. The first weighing sensor is used to obtain the weight value of the first material on the first discharge door, and the second weighing sensor is used to obtain the weight value of the second material on the second discharge door.

[0036] A method for industrial sand mixing includes an automatic mixing method and a manual mixing method.

[0037] Automatically set the stirring method:

[0038] Step 1: When working, turn the "Manual / Automatic" switch of the sand mixing system on the touch screen to the "Automatic" position, and then check the touch screen to see if there is any alarm information. If there is an alarm information, troubleshoot the fault.

[0039] After pressing the "Automatic start of sand mixing" button on the touch screen, the starting sequence of the twin-shaft mixer body 1 is: start warning time 10 seconds - start the main oil pump of the twin-shaft mixer body 1 - delay 10 seconds - start the main motor of the twin-shaft mixer body 1 - delay 35 seconds - start the first stirring shaft - delay 20 seconds - start the second stirring shaft, thereby starting the twin-shaft mixer body 1 to make the two stirring shafts 6 rotate in opposite directions.

[0040] Step 2: After the startup is completed, the first material is provided to the first discharge door, and the second material is provided to the second discharge door. The controller obtains the first weight value of the first material accumulated on the first discharge door through the first weighing sensor, and the controller obtains the second weight value of the second material accumulated on the second discharge door through the second weighing sensor, wherein the first material is coal powder and the second material is clay.

[0041] The alarm mechanism is to set a first delay time. When the first weight value is greater than the preset first weight threshold, the first delay time starts timing; when the first delay time ends and the first weight value is still greater than the first weight threshold, the first unloading alarm is issued.

[0042] Set the second delay time. When the second weight value is greater than the preset second weight threshold, the second delay time starts to count; when the second delay time ends and the second weight value is still greater than the first weight threshold, the second unloading alarm is issued. The first delay time and the second delay time are both 10S.

[0043] Step three: When the first weight value is equal to the preset first weight threshold, the controller opens the first unloading door to allow the first spiral feeding pipe 2 to transport the first material to the biaxial mixer body 1. At the same time, the controller opens the control valve to add a preset volume of water into the biaxial mixer body 1. The biaxial mixer body 1 stirs the first material and water in the body according to the preset first stirring time.

[0044] Step 4: When the first mixing time ends and the second weight value is equal to the preset second weight threshold, the controller closes the first discharge door and opens the second discharge door to allow the second spiral feeding pipe 3 to transport the second material to the biaxial mixer body 1. At the same time, the controller opens the control valve to add a preset volume of water into the biaxial mixer body 1. The biaxial mixer body 1 mixes the second material and water in the body according to the preset second mixing time.

[0045] Step 5: When the second mixing time is over, the controller closes the second discharge door and opens the sand discharge door of the twin-shaft mixer body 1.

[0046] Manually set the stirring method:

[0047] Step 1: When working, turn the "Manual / Automatic" switch of the sand mixing system on the touch screen to the "Manual" position, and then check the touch screen to see if there is any alarm information. If there is an alarm information, troubleshoot the fault.

[0048] Check whether the inspection door of the twin-shaft mixer body 1 is in place normally. When the inspection door of the twin-shaft mixer body 1 is in place normally, press the "automatic start of sand mixing" button on the touch screen. The starting sequence of the twin-shaft mixer body 1 is: start warning time 10 seconds - twin-shaft mixer body 1 main oil pump starts - delay 10 seconds - twin-shaft mixer body 1 main motor starts - delay 35 seconds - first stirring shaft starts - delay 20 seconds - second stirring shaft starts, thereby starting the twin-shaft mixer body 1 to make the two stirring shafts 6 rotate in opposite directions.

[0049] Step 2: After the startup is completed, when the first weight value is equal to the preset first weight threshold, the controller opens the first unloading door to allow the first spiral feeding pipe 2 to transport the first material to the twin-axis mixer body 1, and at the same time manually adds a preset volume of water into the twin-axis mixer body 1, and the twin-axis mixer body 1 stirs the first material and water in the body according to the preset first stirring time.

[0050] Step three: when the first mixing time timing ends and the second weight value is equal to the preset second weight threshold, the controller opens the second unloading door to allow the second spiral feeding pipe 3 to transport the second material to the twin-shaft mixer body 1, and at the same time manually adds a preset volume of water into the twin-shaft mixer body 1, the twin-shaft mixer body 1 mixes the second material and water in the body according to the preset second mixing time, closes the second unloading door, and after a preset 80S, opens the sand unloading door of the twin-shaft mixer body 1, and then closes the sand unloading door after a preset 33S delay.

[0051] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A stirring device for industrial sand, characterized in that: The device comprises a double-shaft stirring machine body (1), a first spiral feeding pipe (2), a second spiral feeding pipe (3) and a controller; the first spiral feeding pipe (2) and the second spiral feeding pipe (3) are both installed above a feeding port (4) of the double-shaft stirring machine body (1); the first spiral feeding pipe (2) and the second spiral feeding pipe (3) are both electrically connected to the controller; the first spiral feeding pipe (2) and the second spiral feeding pipe (3) are both provided with a plurality of evenly arranged feeding holes (5); the feeding holes (5) face the double-shaft stirring machine body (1).

2. A stirring device for industrial sand according to claim 1, characterized in that: The twin-shaft mixer body (1) is provided with two stirring shafts (6) rotating in opposite directions to each other, and a plurality of blades (7) are mounted on each of the two stirring shafts (6). A first motor (8) and a transmission box (9) are mounted on one side of the twin-shaft mixer body (1), and the first motor (8) is transmission-connected to the two stirring shafts (6) via the transmission box (9), and the first motor (8) is electrically connected to an external power source.

3. A stirring device for industrial sand according to claim 1, characterized in that: The first spiral feeding pipe (2) is transmission-connected to a second motor, and the second spiral feeding pipe (3) is transmission-connected to a third motor, and both the second motor and the third motor are electrically connected to a controller.

4. A stirring device for industrial sand according to claim 1, characterized in that: The double-shaft mixer body (1) is also provided with a water supply pipe, the water supply pipe is connected to an external water source, a control valve is installed in the water supply pipe, and the control valve is electrically connected to a controller.

5. A stirring device for industrial sand according to claim 1, characterized in that: One end of the first spiral feeding tube (2) is provided with a first feeding port (10) which is connected to the interior thereof, and a first discharge door is provided between the first feeding port (10) and the first spiral feeding tube (2), and the first discharge door is electrically connected to a controller.

6. A stirring device for industrial sand according to claim 5, characterized in that: One end of the second spiral feeding pipe (3) is provided with a second feeding port (11) which is connected to the interior thereof, and the second feeding port (11) is provided with a second discharge door, and the second discharge door is electrically connected to the controller.

7. A stirring device for industrial sand according to claim 6, characterized in that: A first weighing sensor is installed on the first unloading door, and a second weighing sensor is installed on the second unloading door. Both the first weighing sensor and the second weighing sensor are electrically connected to the controller.

8. A method for a stirring device for industrial sand according to any one of claims 1 to 7, characterized in that: The method is, Step 1: simultaneously starting the double-shaft mixing machine body (1), the first spiral feeding pipe (2) and the second spiral feeding pipe (3); Step 2: providing a first material to the first feed port (10), providing a second material to the second feed port (11), the controller obtaining a first weight value of the first material accumulated on the first discharge door through a first weighing sensor, and the controller obtaining a second weight value of the second material accumulated on the second discharge door through a second weighing sensor; Step 3: When the first weight value is equal to a preset first weight threshold, the controller opens the first discharge door to allow the first spiral feeding pipe (2) to convey the first material to the biaxial mixer body (1), and at the same time, the controller opens the control valve to add a preset volume of water into the biaxial mixer body (1), and the biaxial mixer body (1) stirs the first material and water in the body according to a preset first stirring time; Step 4: When the first stirring time ends and the second weight value is equal to a preset second weight threshold, the controller closes the first discharge door and opens the second discharge door to allow the second spiral feeding pipe (3) to transport the second material to the double-shaft stirring body (1), and at the same time, the controller opens the control valve to add a preset volume of water into the double-shaft stirring body (1), and the double-shaft stirring body (1) stirs the second material and water in the body according to the preset second stirring time; Step 5: When the second mixing time is over, the controller closes the second discharge door and opens the sand discharge door of the twin-shaft mixing machine body (1).

9. A stirring method for industrial sand according to claim 8, characterized in that: In step 2, a first delay time is set. When the first weight value is greater than a preset first weight threshold, the first delay time starts timing. When the first delay time ends and the first weight value is still greater than the first weight threshold, a first unloading alarm is issued. A second delay time is set. When the second weight value is greater than a preset second weight threshold, the second delay time starts timing. When the second delay time ends and the second weight value is still greater than the first weight threshold, a second unloading alarm is issued.

10. A stirring method for industrial sand according to claim 9, characterized in that: The first delay time and the second delay time are both 5S-10S.

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