Multi-source solid waste automatic proportioning device

Abstract

The utility model discloses an automatic proportioning device for multi-source solid waste. The multi-source solid waste automatic proportioning device comprises a mixing mechanism and a weighing mechanism, the weighing mechanism is located at the upper end of the mixing mechanism, the mixing mechanism comprises a plurality of first motors and a second motor, and the first motors are installed on the outer wall of a mixing box. According to the multi-source solid waste automatic proportioning device provided by the utility model, the mixing mechanism and the weighing mechanism are arranged to realize the integrated effect of weighing and mixing materials, and compared with the existing manual weighing and proportioning mode, the device can improve the sampling speed of each material and facilitate the mixing of the materials; and a plurality of mixed materials with preset mixing ratios can be rapidly prepared.

Description

Technical Field

[0001] The utility model relates to the technical field of mine filling, in particular to a multi-source solid waste automatic proportioning device. Background Technique

[0002] With the rapid development of industrialization and urbanization, the generation of solid waste has increased sharply, imposing a huge burden on the environment. Traditional solid waste treatment methods, such as landfilling and incineration, not only occupy a large amount of land resources but also may cause secondary pollution to the environment. The co-disposal of multi-source solid waste is the key way to realize the resource utilization, reduction and harmless treatment of solid waste, and mine filling is the main application scenario for the large-scale disposal of multi-source solid waste.

[0003] At present, cement is generally selected as the cementing material for tailings filling in domestic underground mines, resulting in high filling costs and affecting the economic benefits of mines. New multi-source solid waste cementing filling materials such as coal gangue, magnesium slag, fly ash, and cement are used for underground filling after being mixed in different proportions and stirred with water. The working performance of the materials mixed in different proportions varies greatly. Therefore, when studying the material proportioning, the method of controlling variables is adopted, and a large amount of data is collected experimentally and compared horizontally to obtain a mixing ratio with excellent overall working performance.

[0004] At present, the above operations are processed manually. Due to the large amount and complexity of the collected data information, a large amount of time cost is required during the experiment.

[0005] Therefore, it is necessary to provide a multi-source solid waste automatic proportioning device to solve the above technical problems. Content of the Utility Model

[0006] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a multi-source solid waste automatic proportioning device, which can more quickly collect the weights of different types of materials and then automatically mix them evenly, facilitating the use of researchers.

[0007] To achieve the above object, the technical scheme adopted by the utility model is as follows:

[0008] Multi-source solid waste automatic proportioning device, comprising: a mixing mechanism and a weighing mechanism, the weighing mechanism being located above the mixing mechanism, the mixing mechanism including a first motor and a second motor, there being a plurality of the first motors, which are installed on the outer wall of the mixing tank, the lower end of the mixing tank being provided with a bottom plate, the second motor being installed on the bottom plate, spiral stirring rods being installed on both the first motor and the second motor, the bottom plate being provided with holes, the lower end of the bottom plate being provided with a discharge port, a baffle being provided on the discharge port, the weighing mechanism including a housing, a pressure sensor being installed on the inner wall of the housing, an inner cylinder being provided above the pressure sensor, a cover body being provided at the upper end of the housing, a feed port being provided on the cover body, a rotating shaft being provided at the lower end of the inner cylinder, a sealing plate being provided on the rotating shaft, and a third motor being installed at one end of the rotating shaft.

[0009] Preferably, a primary mixing tank is provided at the upper end of the mixing tank, a plurality of the weighing mechanisms being located above the primary mixing tank, the lower end of the primary mixing tank being installed on the upper end of the mixing tank.

[0010] Preferably, a plurality of observation ports are provided on the primary mixing tank, and toughened glass is installed at the observation ports.

[0011] Preferably, the inner cylinder is detachably installed above the pressure sensor, and the housing and the cover body are also detachably installed.

[0012] Preferably, a signal amplification circuit module is installed on the circuit of the pressure sensor.

[0013] Preferably, the second motor can rotate forward and backward.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] (1) By setting the mixing mechanism and the weighing mechanism, the utility model realizes the integration effect of weighing and mixing of materials. Compared with the existing manual weighing and proportioning method, the device can improve the sampling speed of each material and facilitate the mixing of materials, and quickly produce mixed materials with a variety of preset mix ratios;

[0016] (2) By setting the primary mixing tank, the utility model realizes the preliminary mixing of adjacent two materials, reduces the working intensity of the mixing mechanism and the required mixing time;

[0017] (3) By setting the observation ports, the utility model facilitates the researchers to view the material mixing situation in the primary mixing tank. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of the multi-source solid waste automatic proportioning device provided by the utility model;

[0019] Figure 2Cross-sectional view of the multi-source solid waste automatic proportioning device provided by the present utility model;

[0020] Figure 3 Structural schematic diagram of the weighing mechanism of the multi-source solid waste automatic proportioning device provided by the present utility model;

[0021] Figure 4 For Figure 3 Enlarged view at position A in

[0022] Figure 5 Device working flowchart;

[0023] Figure 6 Weighing circuit structure block diagram;

[0024] Figure 7 Circuit diagram of the third motor controlling the opening degree of the sealing plate;

[0025] Figure 8 Pressure sensor weighing amplification circuit diagram;

[0026] Figure 9 Circuit diagram of the second motor control.

[0027] Among them, the names corresponding to the reference numerals are: 100, mixing mechanism; 101, first motor; 102, second motor; 103, mixing tank; 104, discharge port; 105, bottom plate; 106, baffle; 107, primary mixing tank; 108, observation port; 200, weighing mechanism; 201, housing; 202, cover; 203, inner cylinder; 204, pressure sensor; 205, sealing plate; 206, rotating shaft; 207, third motor. Specific embodiments

[0028] The present utility model will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present utility model include but are not limited to the following embodiments.

[0029] The key point of the research on the mix ratio of different types of materials is to find the best weight configuration of each material, which is essentially the ratio of the weights of various materials.

[0030] First embodiment:

[0031] Such as Figure 1-7As shown in the figure, the multi-source solid waste automatic proportioning device provided by the present utility model includes a mixing mechanism 100 and a weighing mechanism 200. The function of the mixing mechanism 100 is to mix materials, and the function of the weighing mechanism 200 is to weigh materials. The weighing mechanism 200 is located above the mixing mechanism 100. Specifically, the mixing mechanism 100 includes a first motor 101 and a second motor 102. There are four first motors 101, which are respectively installed on the outer wall of the mixing box 103. A bottom plate 105 is provided at the lower end of the mixing box 103. The second motor 102 is installed on the bottom plate 105. Spiral stirring rods are installed on both the first motor 101 and the second motor 102. The stirring parts of the spiral stirring rods are located inside the mixing box 103. There are holes on the bottom plate 105, and the uniformly stirred mixture leaks from the holes. There is a discharge port 104 at the lower end of the bottom plate 105. A baffle 106 is provided on the discharge port 104. The baffle 106 is installed on the outer wall of the discharge port 104 in a pull-out manner for sealing the holes on the bottom plate 105. The weighing mechanism 200 includes a housing 201. A pressure sensor 204 is installed on the inner wall of the housing 201. An inner cylinder 203 is provided above the pressure sensor 204. A cover 202 is provided at the upper end of the housing 201. There is a feed port on the cover 202. A rotating shaft 206 is provided at the lower end of the inner cylinder 203. A sealing plate 205 is provided on the rotating shaft 206. A third motor 207 is installed at one end of the rotating shaft 206. When in use, first, the raw materials enter the inner cylinder 203 from the feed port at the upper end of the cover 202. The pressure sensor 204 connected to the inner cylinder 203 obtains the weight information of the materials. As Figure 5 is the overall operation flow chart of the device. Then, according to the preset weight, after the third motor 207 is started, it drives the rotating shaft 206 and the sealing plate 205 to rotate. The rotation of the sealing plate 205 drives the materials to leak from the inner cylinder 203. A high-precision potentiometer is used as the opening sensor for this part to detect the opening of the sealing plate 205. As Figure 7 shown, the specific principle is to convert the change in the valve opening into the change in the resistance value on the potentiometer, which in turn leads to the change in the current value, and send the signal to the analog-to-digital converter (ADC) of the DSP. At the same time, in order to ensure the operation reliability of the DSP, the original weight of the material minus the existing weight is the weight of the leaked material, which is also the preset material weight value. Each material is weighed in this way. The weighed materials fall into the mixing box 103. The first motor 101 and the second motor 102 are started. The spiral stirring rods on the first motor 101 and the second motor 102 can drive various materials to move, so as to achieve the purpose of uniform mixing.

[0032] By setting the mixing mechanism 100 and the weighing mechanism 200, the weighing and mixing integration effect of materials is realized. Compared with the existing manual weighing and proportioning method, this device can improve the sampling speed of each material and facilitate the mixing of materials, and quickly produce mixed materials with multiple preset mixing ratios.

[0033] Second Embodiment:

[0034] As shown in Figure 2 , an initial mixing tank 107 is provided at the upper end of the mixing tank 103. A number of weighing mechanisms 200 are located at the upper end of the initial mixing tank 107. The lower end of the initial mixing tank 107 is installed on the upper end of the mixing tank 103. When the materials are weighed and then fall from the weighing mechanisms 200, during the falling process, two adjacent materials enter the inner wall of the initial mixing tank 107 together and roll down along the inner wall of the initial mixing tank 107. During this process, the two adjacent materials are mixed with each other to achieve the purpose of preliminary mixing.

[0035] By providing the initial mixing tank 107, the preliminary mixing of two adjacent materials is realized, reducing the working intensity of the mixing mechanism 100 and the required mixing time.

[0036] Third Embodiment:

[0037] As shown in Figure 2 , a number of observation ports 108 are provided on the initial mixing tank 107, and toughened glass is installed at the observation ports 108.

[0038] By providing the observation ports 108, it is convenient for researchers to view the material mixing situation in the initial mixing tank 107.

[0039] Fourth Embodiment:

[0040] As shown in Figure 3 , the inner cylinder 203 is detachably installed on the upper end of the pressure sensor 204, and the outer shell 201 and the cover body 202 are also installed in a detachable manner. The detachable installation manner of the cover body 202 and the outer shell 201 and the detachable installation of the inner cylinder 203 on the pressure sensor 204 facilitate the removal of the inner cylinder 203 from the outer shell 201 and also facilitate the detection and maintenance of the device.

[0041] Fifth Embodiment:

[0042] As shown in Figure 8 , a signal amplification circuit module is installed on the circuit of the pressure sensor 204. The amplification circuit part uses a common operational amplifier, such as OP07, to form a differential amplifier. The differential amplifier consists of two stages. The front stage consists of two operational circuits with the same ratio and forms a parallel differential amplifier. It can not only effectively amplify the DC signal, but also effectively reduce the zero drift of the amplifier caused by temperature changes, and can also effectively suppress the common-mode signal. The rear stage is a differential proportional operation circuit that converts the double-ended signal into a single-ended signal for output.

[0043] Sixth Embodiment:

[0044] As shown in Figure 9As shown in the figure, the second motor 102 can rotate forward and backward. The specific circuit for controlling the forward and backward rotation of the second motor 102 is as follows: First, close QF, then press the button SBI. The relay KMI is energized and attracted. Its normally open contacts 1-2 are closed for self-locking of SBI, and 3-4 are closed to make the AC contactor K1 energized and attracted. Its normally open contacts are closed, and the motor M is energized to rotate forward. At the same time, HI lights up. The DC voltage of 18V output from pins 2 and 3 of the three-terminal integrated voltage regulator AN7818 charges the capacitor C3 through the potentiometer RPI and the resistor RI. The delay circuit composed of the unijunction transistor VI starts timing. When the voltage on C3 reaches the peak point voltage of VI, V1 conducts, and a pulse voltage is generated on the resistor R3 and applied to the C and K poles of the thyristor v2. V2 is triggered and conducts. The relay KM2 is energized and attracted. Its contacts 1-2 are closed, and 3-4 are disconnected, causing the AC contactor K1 to lose power and release. Its main contacts are disconnected, and K2 is energized and attracted. Its main contacts are closed, and the A and C phases of the three-phase AC voltages A, B, and C are interchanged, making the motor M rotate in reverse. At this time, the lamp HI goes out, and the reverse rotation indicator lamp H2 lights up. The normally open auxiliary contact of K2 is also closed, short-circuiting C3 and stopping the timing of the delay circuit composed of VI. At the same time, since the forward voltage drop of the thyristor V2 is very small when it conducts, about 0.4V, the potential at point A is close to 0V, which is equivalent to turning on another delay circuit composed of the unijunction transistor V3. C5 starts charging. Similarly, when the voltage on C5 reaches the peak point voltage of V3, a pulse voltage is generated on R5. This voltage is only applied to the A and K poles of V2, turning off V2. KM2 loses power and releases. Its 1-2 contacts are disconnected, and 3-4 contacts are closed, causing K2 to lose power and release. Its normally open contacts are disconnected, while K1 is energized and attracted. Its main contacts are closed, and the motor M starts rotating forward again. At this time, the green lamp H2 goes out, and the red lamp H1 lights up again. Since K2 loses power, its normally open auxiliary contact returns to its original normally open state. In this way, the delay circuit composed of V1 starts timing again. This process continues, and the rotation direction of the second motor 102 changes periodically with time. In the coil circuits of the AC contactors K1 and K2, mutual interlocking is carried out through the normally closed auxiliary contacts of K1 and K2 to ensure that K2 loses power when K1 is energized and K1 loses power when K2 is energized, realizing electrical interlocking and thus ensuring that the A and C phases of the power supply do not short-circuit. When the circuit needs to stop working, just press the button SB2.

[0045] Working principle: By setting up the mixing mechanism 100 and the weighing mechanism 200, the weighing and mixing of materials are integrated. Compared with the existing method of manual weighing and proportioning, this device can improve the sampling speed of each material and facilitate the mixing of materials, quickly producing mixed materials with various preset mixing ratios.

[0046] The above embodiments are only one of the preferred embodiments of the present utility model and should not be used to limit the protection scope of the present utility model. Any modification or polishing that has no substantial meaning made on the main design concept and spirit of the present utility model, as long as the technical problems solved by it are still consistent with those of the present utility model, shall be included within the protection scope of the present utility model.

Claims

1. An automatic proportioning device for multi-source solid waste, characterized in that, Including: A mixing mechanism (100) and a weighing mechanism (200), the weighing mechanism (200) is located at the upper end of the mixing mechanism (100), the mixing mechanism (100) includes a first motor (101) and a second motor (102), several first motors (101) are provided and installed on the outer wall of the mixing tank (103), a bottom plate (105) is provided at the lower end of the mixing tank (103), the second motor (102) is installed on the bottom plate (105), spiral stirring rods are installed on both the first motor (101) and the second motor (102), holes are provided on the bottom plate (105), a discharge port (104) is provided at the lower end of the bottom plate (105), a baffle (106) is provided on the discharge port (104), the weighing mechanism (200) includes a housing (201), a pressure sensor (204) is installed on the inner wall of the housing (201), an inner cylinder (203) is provided at the upper end of the pressure sensor (204), a cover body (202) is provided at the upper end of the housing (201), a feed port is provided on the cover body (202), a rotating shaft (206) is provided at the lower end of the inner cylinder (203), a sealing plate (205) is provided on the rotating shaft (206), and a third motor (207) is installed at one end of the rotating shaft (206).

2. The multi-source solid waste automatic proportioning device according to claim 1, characterized in that An initial mixing tank (107) is provided at the upper end of the mixing tank (103), several weighing mechanisms (200) are located at the upper end of the initial mixing tank (107), and the lower end of the initial mixing tank (107) is installed on the upper end of the mixing tank (103).

3. The multi-source solid waste automatic proportioning device according to claim 2, characterized in that, Several observation ports (108) are provided on the initial mixing tank (107), and toughened glass is installed at the observation ports (108).

4. The multi-source solid waste automatic proportioning device according to claim 1, characterized in that The inner cylinder (203) is detachably installed at the upper end of the pressure sensor (204), and the housing (201) and the cover body (202) are also detachably installed.

5. The multi-source solid waste automatic proportioning device according to claim 4, wherein A signal amplification circuit module is installed on the circuit of the pressure sensor (204).

6. The multi-source solid waste automatic proportioning device according to claim 1, characterized in that The second motor (102) can rotate forward and backward.

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