Brick production from municipal solid waste incinerator bottom ash

Abstract

The application discloses a kind of domestic waste incineration slag brick making devices, the side of mounting bracket is provided with driving motor, the rotating end of driving motor is connected with driving wheel, driving wheel is connected with driven wheel by transmission belt and transmission, the input shaft end of driven wheel is connected with the input shaft end of speed reducer, the output shaft end of speed reducer is connected with stirring and pushing mechanism transmission;Mounting bracket is also provided with additive filling mechanism, additive filling mechanism is transported additive to stirring and pushing mechanism by pipeline, additive and incineration slag are stirred and mixed preformed product, and preformed product is pushed outwards by the discharge port of stirring and pushing mechanism.The application also discloses a kind of about domestic waste incineration slag brick making device production method, relative to prior art, the technical scheme of the application can effectively improve the working efficiency of incineration slag brick making process and ensure the quality reliability of product.

Description

Technical Field

[0001] This invention relates to the field of municipal solid waste incineration slag treatment technology, and in particular to a brick-making device and production method using municipal solid waste incineration slag. Background Technology

[0002] In existing technologies, high-temperature incineration is a very common method for treating municipal solid waste. High-temperature incineration can efficiently reduce the volume of municipal solid waste and completely burn away the harmful substances contained in it.

[0003] Although high-temperature incineration can significantly reduce the volume of municipal solid waste, a certain amount of incinerator slag still remains after incineration. After metal screening, crushing, and filtration, the remaining slag can be used as a reusable building material. Some environmental recycling companies use it in the manufacture of paving bricks. In the current brick-making process, the slag is simply mixed with concrete and then molded into a fixed shape. However, the above production method is inefficient and lacks a corresponding adhesive additive system, which can easily lead to low structural strength of the finished product and inaccurate material feeding. Summary of the Invention

[0004] The main objective of this invention is to propose a brick-making device for municipal solid waste incinerator slag with high working efficiency and precise feeding, and to propose a production method using the municipal solid waste incinerator slag brick-making device, aiming to improve the working efficiency of the incinerator slag brick-making process and ensure the quality and reliability of the product.

[0005] To achieve the above objectives, the present invention proposes a brick-making device using municipal solid waste incinerator slag, comprising a mounting bracket, a drive motor mounted on one side of the mounting bracket, a drive wheel connected to the rotating end of the drive motor, the drive wheel connected to and driven by a driven wheel via a transmission belt, the driven wheel connected to the input shaft of a reducer, and the output shaft of the reducer connected to a stirring and pushing mechanism; the mounting bracket also includes an additive injection mechanism, which delivers additives to the stirring and pushing mechanism via pipelines, the additives and incinerator slag are mixed and preformed, and the preformed product is pushed outward through the discharge port of the stirring and pushing mechanism.

[0006] Preferably, the stirring and pushing mechanism includes an outer shell and a stirring shaft disposed therein. The top of the outer shell is provided with a feeding port, and the stirring shaft is provided with spirally arranged stirring blades on its outer periphery. The stirring shaft is connected to the drive shaft for transmission.

[0007] Preferably, the additive dispensing mechanism includes a storage tank and an auxiliary motor. The transmission end of the auxiliary motor is connected to the rotating shaft of the infusion pump. The infusion pump is provided with at least an inlet pipe and an outlet pipe. One end of the inlet pipe is connected to the storage tank, and the other end of the inlet pipe is connected to the inlet end of the infusion pump. One end of the outlet pipe is connected to the outlet end of the infusion pump, and the other end of the outlet pipe is connected to the additive dispersing device. The bottom of the additive dispersing device is connected to the inside of the outer shell.

[0008] Preferably, the infusion pump includes a pump housing, inside which a rotating block is provided. The outer circumferential surface of the rotating block and the inner cavity of the pump housing form an infusion channel. The inlet pipe and the outlet pipe are respectively connected to the infusion channel. Several isolation plates are provided on the outer circumference of the rotating block, which divide the infusion channel into several infusion chambers. A bypass chamber is provided on the inner side of the pump housing, which is connected to the infusion channel. Rotating blades are provided at intervals in the bypass chamber to divide the bypass chamber into several small chambers. A return pipe is provided on the surface of the pump housing, which passes through the pump housing and is connected to any small chamber. The return pipe is not directly connected to the infusion channel. A servo electric pump is provided in the middle of the return pipe, which can return the solution inside the small chamber to the storage tank. The rotating blades are rotatably connected to a hysteresis motor provided on the other end face of the pump housing. The rotation direction of the rotating blades is opposite to that of the rotating block.

[0009] Preferably, the discharge port includes a flange fixing plate and a discharge port housing disposed at the end of the flange fixing plate. The front edge of the discharge port housing is respectively hinged to an upper pressure plate, a lower pressure plate, a left pressure plate and a right pressure plate. The outer surfaces of the upper pressure plate, the lower pressure plate, the left pressure plate and the right pressure plate are respectively hinged to an elastic support mechanism. The other end of the elastic support mechanism is hinged to the flange fixing plate.

[0010] Preferably, the elastic support mechanism includes a front support rod and a rear support rod arranged front to back. The front support rod is fixedly connected to one end of the sleeve. A pressure sensor is provided inside the sleeve and fixedly connected to one end of the front support rod. An elastic pressure block is provided at one end of the rear support rod to compress the pressure sensor. One end of the rear support rod can slide axially relative to the sleeve. The pressure sensor is electrically connected to the drive motor and the auxiliary motor respectively.

[0011] Preferably, a weight sensor is provided in the elastic support mechanism connected to the lower pressure plate, and a compression pressure sensor is provided in the elastic support mechanism connected to the upper pressure plate, the left pressure plate, and the right pressure plate.

[0012] The present invention also proposes a production method for the aforementioned municipal solid waste incinerator slag brick-making device, comprising the following steps:

[0013] Step S1: The operator adds incinerator slag to the outer shell through the feeding port, and the incinerator slag is stirred inside the outer shell by the stirring blades;

[0014] Step S2: The auxiliary motor drives the rotating block to rotate, and the corresponding isolation plate rotates with the rotating block. Part of the infusion chamber draws the additive solution from the inlet pipe, and part of the infusion chamber outputs the additive solution to the outlet pipe.

[0015] Step S3: The additive solution enters the internal chamber of the outer shell through the additive dispersion device and mixes with the incinerator slag, turning the incinerator slag into a pre-formed product, which is then output through the discharge port.

[0016] Step S4: The three extrusion pressure sensors monitor the changes in extrusion force during the output process of the preformed product, while the weight sensor monitors the changes in weight during the output process of the preformed product; when the weight change exceeds a first threshold in the first time period and the extrusion force change exceeds a second threshold in the second time period, the drive motor and the auxiliary motor make adaptive adjustments.

[0017] Preferably, in step S4, when the weight change is increasing and the extrusion pressure change is increasing, it is necessary to reduce the rotation speed of the drive motor and the rotation speed of the auxiliary motor.

[0018] When the weight change is decreasing and the extrusion pressure change is decreasing, it is necessary to increase the rotation speed of the drive motor and the rotation speed of the auxiliary motor.

[0019] When the weight change is increasing and the extrusion pressure change is decreasing, it is necessary to reduce the rotation speed of the drive motor and increase the rotation speed of the auxiliary motor. At the same time, if the absolute value of the percentage decrease in extrusion pressure is greater than the absolute value of the percentage change in weight, the amount of additive added should be adjusted, and the amount of additive added should be adjusted by increasing the difference between the absolute value of the percentage decrease in extrusion pressure and the absolute value of the percentage change in weight.

[0020] When the weight change is decreasing and the extrusion pressure change is increasing, it is necessary to increase the rotation speed of the drive motor and decrease the rotation speed of the auxiliary motor. At the same time, if the absolute value of the percentage decrease in extrusion pressure is greater than the absolute value of the percentage change in weight, the amount of additive reduction should be adjusted, and the amount of additive reduction should be reduced by the difference between the absolute value of the percentage decrease in extrusion pressure and the absolute value of the percentage change in weight.

[0021] Preferably, the hysteresis motor and the servo pump are electrically connected to the auxiliary motor, and the speed of the hysteresis motor and the servo pump is adjusted by half the speed adjustment ratio of the auxiliary motor.

[0022] The technical solution of this invention has the following advantages over the prior art:

[0023] The present invention relates to a brick-making device using municipal solid waste incinerator slag. A drive motor is mounted on one side of the mounting bracket. The rotating end of the drive motor is connected to a driving wheel, which is connected to a driven wheel via a transmission belt. The driven wheel is connected to the input shaft of a reducer, and the output shaft of the reducer is connected to a stirring and pushing mechanism. The mounting bracket also includes an additive injection mechanism. This mechanism delivers additives to the stirring and pushing mechanism via pipelines. The additives and incinerator slag are mixed and pre-formed into a product, which is then pushed outwards through the discharge port of the stirring and pushing mechanism. This allows for efficient and precise control of the brick-making process using incinerator slag. Furthermore, the production method of the brick-making device using municipal solid waste incinerator slag, based on online weight monitoring and extrusion pressure detection, can accurately and adaptively control the amount of additives added, effectively ensuring product quality and reliability. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1 This is a three-dimensional structural schematic diagram of the brick-making device using municipal solid waste incinerator slag according to the present invention.

[0026] Figure 2 This is a schematic diagram of the internal structure of the infusion pump of the present invention;

[0027] Figure 3 This is a three-dimensional structural diagram of the infusion pump of the present invention;

[0028] Figure 4 This is a three-dimensional structural diagram of the discharge port of the present invention;

[0029] Figure 5 This is an internal cross-sectional view of the elastic support mechanism of the present invention.

[0030] Explanation of icon numbers:

[0031] 1. Mounting bracket; 2. Drive motor; 3. Drive wheel; 4. Transmission belt; 5. Driven wheel; 6. Reducer; 7. Stirring and pushing mechanism; 71. Outer casing; 72. Feed port; 8. Additive dispensing mechanism; 81. Storage tank; 82. Auxiliary motor; 83. Infusion pump; 831. Pump casing; 832. Receiving cavity; 833. Rotating block; 834. Infusion channel; 835. Isolation plate; 836. Bypass chamber; 837. Rotating blade; 8 38. Return pipe; 839. Hysteresis motor; 84. Inlet pipe; 85. Outlet pipe; 9. Additive dispersion device; 10. Discharge port; 101. Flange fixing plate; 102. Discharge port housing; 103. Upper pressure plate; 104. Lower pressure plate; 105. Left pressure plate; 106. Right pressure plate; 11. Elastic support mechanism; 111. Front support rod; 112. Rear support rod; 113. Sleeve; 114. Elastic pressure block; 115. Pressure sensor.

[0032] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0034] This invention proposes a brick-making device using slag from municipal solid waste incineration. Example

[0035] Please see Figures 1 to 4 In this embodiment of the invention, the brick-making device using municipal solid waste incinerator slag includes a mounting bracket 1. A drive motor 2 is mounted on one side of the mounting bracket 1. The rotating shaft of the drive motor 2 is connected to a drive wheel 3. The drive wheel 3 is connected to a driven wheel 5 via a transmission belt 4, thereby achieving belt drive. In other embodiments of the invention, the transmission between the drive wheel 3 and the driven wheel 5 can be achieved via chain drive. The driven wheel 5 is also connected to the input shaft of a reducer 6, and the output shaft of the reducer 6 is connected to a stirring and pushing mechanism 7. In addition, the mounting bracket 1 of this embodiment of the invention is also provided with an additive adding mechanism 8. The additive adding mechanism 8 delivers additives to the stirring and pushing mechanism 7 through a pipeline, thereby mixing the additives with the incinerator slag to form a pre-formed product, which is finally pushed outward through the discharge port 10 of the stirring and pushing mechanism 7.

[0036] Specifically, the stirring and pushing mechanism 7 of this embodiment includes an outer shell 71 and a stirring shaft (not shown in the figure) disposed therein. A feeding port 72 is provided at the top of the outer shell 71, and the feeding port 72 is funnel-shaped, allowing incinerator slag to be added into the outer shell 71 through the feeding port 72. Simultaneously, the stirring shaft is horizontally positioned at the center of the outer shell 71 and is drively connected to the coupling drive shaft of the reducer 6. Furthermore, the outer circumferential surface of the stirring shaft is provided with spirally arranged stirring blades (not shown in the figure), thereby causing the incinerator slag and additives to be stirred and mixed inside the outer shell 71 and pushed axially forward.

[0037] The additive in this embodiment of the invention is a binder for pre-forming incinerator slag. It can be added into the interior of the outer shell 71 through the feeding port 72 and mixed with the incinerator slag to give it a certain hardness and prevent it from becoming loose after passing through the discharge port 10.

[0038] To better control the amount of additives added and ensure that the quality of the pre-formed product of the mixed incinerator slag meets the relevant requirements, the additive dispensing mechanism 8 of this embodiment includes a storage tank 81 and an auxiliary motor 82. The transmission end of the auxiliary motor 82 is connected to the shaft of the delivery pump 83, and the delivery pump 83 is provided with at least an inlet pipe 84 and an outlet pipe 85. One end of the inlet pipe 84 is connected to the storage tank 81, and the other end of the inlet pipe 84 is connected to the inlet end of the delivery pump 83, so that the additive can enter the interior of the delivery pump 83 from the storage tank 81. One end of the outlet pipe 85 is connected to the outlet end of the delivery pump 83, and the other end of the outlet pipe 85 is connected to the additive dispersion device 9. The bottom of the additive dispersion device 9 is connected to the interior of the outer shell 71. Therefore, the additive entering the interior of the delivery pump 83 can enter the additive dispersion device 9 from the outlet pipe 85, thereby mixing evenly with the incinerator slag.

[0039] Preferably, the infusion pump 83 of this embodiment includes a pump housing 831, with a receiving cavity 832 inside the pump housing 831 for mounting a rotating mechanism. A rotating block 833 is also provided inside the pump housing, wherein the rotating block 833 is axially cylindrical, has a circular cross-section, and forms a gap between the outer circumferential surface of the rotating block 833 and the inner circular cavity of the pump housing 831. This gap can serve as an infusion channel 834 for conveying additives. In this embodiment, the inlet pipe 84 and the outlet pipe 85 are respectively connected to the infusion channel 834, thereby allowing the additive solution to be conveyed through the inlet pipe 84, the infusion channel 834, and the outlet pipe 85. In this embodiment, the rotating block 833 has three isolation plates 835 on its outer periphery. Therefore, the isolation plates 835 divide the infusion channel 834 into three infusion chambers. By rotating the rotating block 833 in a certain direction, the three infusion chambers move circumferentially, that is, the three infusion chambers are alternately connected to the inlet pipe 84 and the outlet pipe 85. In addition, a bypass chamber 836 is provided on the inner side of the pump housing 831. The bypass chamber 836 is connected to the infusion channel 834. The bypass chamber 836 is provided with spaced rotating blades 837, which can divide the bypass chamber 836 into several circumferentially arranged small chambers. In this embodiment, the rotating blades 837 are centrally connected to a rotating shaft structure to achieve circumferential rotation, that is, some of the small chambers can be connected to the infusion channel 834 respectively.

[0040] In the embodiments of the present invention Figure 2 As shown, the bypass chamber 836 and the receiving cavity 832 are in the same plane. In other embodiments of the present invention, the axial cross-section of the bypass chamber 836 is perpendicular to the axial cross-section of the receiving cavity 832.

[0041] In order to partially return the additive in the bypass chamber 836 to the storage tank 81 to balance the working pressure of the receiving chamber 832, the pump housing 831 of this embodiment is provided with a return pipe 838. The return pipe 838 passes through the pump housing 831 and communicates with any small chamber. It should be noted that the return pipe 838 of this invention is not directly connected to the infusion channel 834, so that the pressure increase generated in the small chamber by the rotation of the rotating blade 837 is relieved by the return pipe 838.

[0042] In order to better control the rotation speed of the rotating blade 837, the central axis of the rotating blade 837 in this embodiment is rotatably connected to the hysteresis motor 839 disposed on the other end face of the pump housing 831. The rotating blade 837 and the rotating block 833 rotate in opposite directions. The rotating blade 837 comes into contact with the isolation plate 835 on the outer peripheral surface of the rotating block 833 during the rotation process. Thus, the rotation speed of the rotating block 833 can be controlled and buffered by controlling the rotation speed of the hysteresis motor 839.

[0043] To monitor the overall structural strength of the material at the discharge port 10 in real time, the discharge port 10 of this embodiment includes a flange fixing plate 101 and a discharge port housing 102 disposed at the end of the flange fixing plate 101. The front edge of the discharge port housing 102 is respectively connected to an upper pressure plate 103, a lower pressure plate 104, a left pressure plate 105, and a right pressure plate 106. That is, in terms of spatial position, the upper pressure plate 103, the lower pressure plate 104, the left pressure plate 105, and the right pressure plate 106 are arranged in an up-down-left-right spatial layout. In addition, in order to monitor the relative force of the corresponding pressure plates on the finished brick, the outer surfaces of the upper pressure plate 103, the lower pressure plate 104, the left pressure plate 105, and the right pressure plate 106 are respectively hinged to elastic support mechanisms 11, and the other end of the elastic support mechanism 11 is hinged to the flange fixing plate 101.

[0044] Please see Figure 5 Preferably, the elastic support mechanism 11 of this embodiment includes a front support rod 111 and a rear support rod 112 arranged front and rear, with the front support rod 111 and the rear support rod 112 arranged axially in a front-rear relationship. One end of the front support rod 111 is hinged to the surface of the pressure plate through a hinge structure, and the other end of the front support rod 111 is fixedly connected to one end of the sleeve 113, which can be fixed by adhesive, welding or other fixing structures. A corresponding pressure sensor 115 is provided inside the sleeve 113. One end of the rear support rod 112 is hinged to the flange fixing plate 101, and the other end of the rear support rod 112 passes into the sleeve 113. The rear support rod 112 can slide axially relative to the sleeve 113. An elastic pressure block 114 is provided at the front end of the other end of the rear support rod 112 to compress the corresponding pressure sensor, thereby enabling the pressure sensor to receive the corresponding pressure signal. The pressure sensors respectively provided inside the elastic support mechanism 11 are simultaneously electrically connected to the auxiliary motor 82 and the drive motor 2. Preferably, the elastic pressure block can be a spring structure or a spring sheet structure.

[0045] More preferably, in this embodiment, a weight sensor is provided inside the elastic support mechanism 11 connected to the lower pressure plate 104, while corresponding extrusion pressure sensors are provided inside the elastic support mechanisms 11 connected to the upper pressure plate 103, left pressure plate 105, and right pressure plate 106. The weight sensor is used to detect the weight change of the preformed product, while the extrusion pressure sensor is used to detect the extrusion force exerted on the preformed product by the upper pressure plate 103, left pressure plate 105, and right pressure plate 106, and to transmit the corresponding weight change signal and extrusion force change signal to the processor connected to the auxiliary motor 82 and the drive motor 2 for analysis, so as to make corresponding control strategies. Example

[0046] Please see Figures 1 to 4This invention discloses a production method for a brick-making device using municipal solid waste incinerator slag, as described in Embodiment 1, as follows:

[0047] First, the operator adds the incinerator slag, which has undergone certain screening and filtration processes, into the outer shell 71 through the feeding port 72. Then, the corresponding drive motor 2 is started to rotate, which drives the drive wheel 3 to rotate. The drive wheel 3 drives the driven wheel 5 to rotate via belt drive. The rotational power is then transmitted to the stirring shaft through the reducer 6, thereby causing the incinerator slag to be stirred inside the outer shell 71.

[0048] At the same time, the auxiliary motor 82 is started, which drives the rotating block 833 to rotate. The corresponding isolation plate 835 rotates with the rotating block 833. In this embodiment, the three infusion chambers rotate circumferentially relative to the central axis of the rotating block 833. The multiple infusion chambers are respectively connected to the inlet pipe 84 and the outlet pipe 85. Some of the infusion chambers that have been supplied with additive solution to the outlet pipe 85 will enter the corresponding infusion chamber through a vacuum when rotating to the position of the inlet pipe 84. When the infusion chamber storing a certain amount of additive solution rotates to the position of the outlet pipe 85, the solution can be output to the outside through the corresponding outlet pipe 85.

[0049] When the additive solution enters the additive dispersion device 9 from the outlet pipe 85, it can be dispersed to form dispersed droplets, which mix with the incinerator slag. Since the additive in this embodiment is added to the inside of the incinerator slag and mixed with it, the internal structure of the incinerator slag can be solidified, so that the incinerator slag can be pre-solidified in advance during the overall brick making process. At this time, the incinerator slag preformed product still has a certain fluidity. Therefore, the mixed incinerator slag can flow out through the outlet 10. The outlet 10 with a fixed diameter can make the incinerator slag present as a strip structure during the overall outward flow. With the subsequent cutting structure, the incinerator slag preformed product can be made into bricks with corresponding dimensions.

[0050] The additive dispersion device 9 of this invention is a hollow chamber shell structure, and several baffles are provided at the bottom inside the chamber shell, so that after the additive enters the additive dispersion device 9, it is separated by the baffles and fully mixed with the incinerator slag.

[0051] Because the elastic support mechanism 11, which is connected to the upper pressure plate 103, left pressure plate 104, and right pressure plate 105 in this embodiment, is equipped with a compression pressure sensor, the top, left, and right sides of the preformed incinerator slag are compressed by the upper pressure plate 103, left pressure plate 104, and right pressure plate 105 during the process of mixing and outputting the incinerator slag through the discharge port 10. The compression pressure sensor can collect the corresponding compression pressure value changes to monitor whether the amount of additives used in the incinerator slag is appropriate in real time, so as to ensure that the structural strength of the preformed product of the supported incinerator slag output material meets the requirements.

[0052] In addition, the elastic support mechanism 11 connected to the lower pressure plate 104 in this embodiment is equipped with a weight sensor. It should be noted that, since the weight of the pre-formed incinerator slag per unit length remains relatively stable during the outward output of the pre-formed incinerator slag product without changing other parameters, if the weight sensor detects a large fluctuation in the weight of the finished pre-formed incinerator slag product, it can be assumed that the amount of additive added or the raw materials of the incinerator slag have changed to a certain extent.

[0053] Therefore, in this embodiment of the invention, the three extrusion pressure sensors monitor the changes in extrusion force during the output process of the incinerator slag preformed product, while the weight sensor monitors the weight changes during the output process. The three extrusion pressure sensors detect pressure on the top surface and two sides of the preformed product, respectively, enabling monitoring of the structural strength of most parts of the preformed product across its cross-section to ensure it meets requirements. Simultaneously, the weight sensor can detect whether the preformed product breaks or has internal hollow areas during the discharge process, and can effectively supplement the detection capabilities of the three extrusion pressure sensors.

[0054] Preferably, in this embodiment, the weight sensor monitors the weight change during the output process of the preformed product. When the weight change occurs in the first time period, the weight difference between the weight value at the beginning of the detection time and the weight value at the end of the detection time exceeds a first threshold. Considering the changes in the extrusion force corresponding to the three extrusion pressure sensors occurring in the second time period, such as taking the average of the pressure value changes of the three extrusion pressure sensors at the same moment, the pressure difference between the extrusion pressure value at the beginning of the detection time and the extrusion pressure value at the end of the detection time exceeds a second threshold. Accordingly, the drive motor 2 and the auxiliary motor 82 make adaptive adjustments.

[0055] When the weight change is increasing and the extrusion pressure change is increasing, it indicates that the amount of preformed products of incinerator slag is too large and the amount of additives is too large, which increases the weight per unit length of incinerator slag and causes the incinerator slag to solidify too quickly. In this case, it is necessary to reduce the rotation speed of drive motor 2 and reduce the rotation speed of auxiliary motor 82.

[0056] When the weight change is decreasing and the extrusion pressure change is decreasing, it indicates that the amount of preformed product of incinerator slag is too small and the amount of additives is too small, resulting in a decrease in the weight per unit length of incinerator slag and slow solidification of incinerator slag. Therefore, it is necessary to increase the rotation speed of drive motor 2 and the rotation speed of auxiliary motor 82.

[0057] When the weight change is increasing and the extrusion pressure change is decreasing, it indicates that there is too much preformed product and too little additive in the incinerator slag. This results in an increase in the weight per unit length of the incinerator slag and slow solidification. In this case, it is necessary to reduce the rotation speed of the drive motor and increase the rotation speed of the auxiliary motor. Simultaneously, if the absolute value of the decrease in extrusion pressure is greater than the absolute value of the weight change, the additive increase should be adjusted first. The additive amount should be adjusted proportionally to the difference between the absolute value of the decrease in extrusion pressure and the absolute value of the weight change to ensure the curing strength of the preformed product.

[0058] When the weight change is decreasing and the extrusion pressure change is increasing, it indicates that the amount of preformed incinerator slag is too small and the amount of additives is too large, resulting in insufficient weight per unit length of incinerator slag and excessively rapid solidification of the slag. In this case, it is necessary to increase the rotation speed of the drive motor and decrease the rotation speed of the auxiliary motor. Simultaneously, if the absolute value of the percentage decrease in extrusion pressure is greater than the absolute value of the percentage change in weight, then the amount of additives should be adjusted first, and the amount of additives should be adjusted by decreasing the difference between the absolute value of the percentage decrease in extrusion pressure and the absolute value of the percentage change in weight.

[0059] In addition, in this embodiment, the hysteresis motor 839 and the servo pump are electrically connected to the auxiliary motor 82, and the speed of the hysteresis motor 839 and the servo pump is adjusted by half the speed adjustment ratio of the auxiliary motor 82. This allows the rotating blade 837 to contact and cooperate with the isolation plate 835 of the rotating block 833, thereby achieving a buffering and speed reduction effect on the rotation process of the rotating block 833 and ensuring the smooth delivery of the additive inside the infusion channel.

[0060] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made under the concept of the present invention using the contents of the present invention specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A brick-making device using slag from municipal solid waste incineration, characterized in that, The system includes a mounting bracket with a drive motor on one side. The rotating end of the drive motor is connected to a driving wheel, which is connected to a driven wheel via a transmission belt. The driven wheel is connected to the input shaft of a reducer, and the output shaft of the reducer is connected to a stirring and pushing mechanism. The mounting bracket also includes an additive filling mechanism, which delivers additives to the stirring and pushing mechanism through pipelines. The additives and incinerator slag are mixed and blended to form a preformed product, which is then pushed outward through the discharge port of the stirring and pushing mechanism. The stirring and pushing mechanism includes an outer shell and a stirring shaft disposed therein. A feeding port is provided at the top of the outer shell, and stirring blades are spirally arranged on the outer periphery of the stirring shaft. The stirring shaft is connected to the drive shaft of the coupling of the reducer. The additive dispensing mechanism includes a storage tank and an auxiliary motor. The transmission end of the auxiliary motor is connected to the shaft of the infusion pump. The infusion pump is equipped with at least an inlet pipe and an outlet pipe. One end of the inlet pipe is connected to the storage tank, and the other end of the inlet pipe is connected to the inlet end of the infusion pump. One end of the outlet pipe is connected to the outlet end of the infusion pump, and the other end of the outlet pipe is connected to the additive dispersion device. The bottom of the additive dispersion device is connected to the inside of the outer shell. The infusion pump includes a pump housing with a rotating block inside. The outer circumferential surface of the rotating block forms an infusion channel with the inner cavity of the pump housing. The inlet pipe and the outlet pipe are respectively connected to the infusion channel. Several isolation plates are provided on the outer circumference of the rotating block, which divide the infusion channel into several infusion chambers. A bypass chamber is provided on the inner side of the pump housing, which is connected to the infusion channel. Rotating blades are provided at intervals in the bypass chamber to divide the bypass chamber into several small chambers. A return pipe is provided on the surface of the pump housing, which passes through the pump housing and is connected to any small chamber. The return pipe is not directly connected to the infusion channel. A servo electric pump is provided in the middle of the return pipe, which can return the solution inside the small chamber to the storage tank. The rotating blades are rotatably connected to a hysteresis motor located on the other end face of the pump housing, and the rotation direction of the rotating blades is opposite to that of the rotating block.

2. The brick-making device using municipal solid waste incinerator slag as described in claim 1, characterized in that, The discharge port includes a flange fixing plate and a discharge port housing disposed at the end of the flange fixing plate. The front edge of the discharge port housing is respectively hinged to an upper pressure plate, a lower pressure plate, a left pressure plate and a right pressure plate. The outer surfaces of the upper pressure plate, the lower pressure plate, the left pressure plate and the right pressure plate are respectively hinged to an elastic support mechanism. The other end of the elastic support mechanism is hinged to the flange fixing plate.

3. The brick-making device using municipal solid waste incinerator slag as described in claim 2, characterized in that, The elastic support mechanism includes a front support rod and a rear support rod arranged at the front and rear. The front support rod is fixedly connected to one end of the sleeve. A pressure sensor is provided inside the sleeve and fixedly connected to one end of the front support rod. An elastic pressure block is provided at one end of the rear support rod to compress the pressure sensor. One end of the rear support rod can slide axially relative to the sleeve. The pressure sensor is electrically connected to the drive motor and the auxiliary motor respectively.

4. The brick-making device using municipal solid waste incinerator slag as described in claim 3, characterized in that, A weight sensor is installed in the elastic support mechanism connected to the lower pressure plate, and a compression pressure sensor is installed in the elastic support mechanism connected to the upper pressure plate, the left pressure plate, and the right pressure plate.

5. A production method for a brick-making apparatus using municipal solid waste incinerator slag as described in claim 4, characterized in that, Includes the following steps: Step S1: The operator adds incinerator slag to the outer shell through the feeding port, and the incinerator slag is stirred inside the outer shell by the stirring blades; Step S2: The auxiliary motor drives the rotating block to rotate, and the corresponding isolation plate rotates with the rotating block. Part of the infusion chamber draws the additive solution from the inlet pipe, and part of the infusion chamber outputs the additive solution to the outlet pipe. Step S3: The additive solution enters the internal chamber of the outer shell through the additive dispersion device and mixes with the incinerator slag, turning the incinerator slag into a pre-formed product, which is then output through the discharge port. Step S4: The three extrusion pressure sensors monitor the changes in extrusion force during the output process of the preformed product, while the weight sensor monitors the changes in weight during the output process of the preformed product; when the weight change exceeds a first threshold in the first time period and the extrusion force change exceeds a second threshold in the second time period, the drive motor and the auxiliary motor make adaptive adjustments.

6. The production method as described in claim 5, characterized in that, In step S4, when the weight change is increasing and the extrusion pressure change is increasing, it is necessary to reduce the rotation speed of the drive motor and the rotation speed of the auxiliary motor. When the weight change is decreasing and the extrusion pressure change is decreasing, it is necessary to increase the rotation speed of the drive motor and the rotation speed of the auxiliary motor. When the weight change is increasing and the extrusion pressure change is decreasing, it is necessary to reduce the rotation speed of the drive motor and increase the rotation speed of the auxiliary motor. At the same time, if the absolute value of the percentage decrease in extrusion pressure is greater than the absolute value of the percentage change in weight, the amount of additive added should be adjusted, and the amount of additive added should be adjusted by increasing the difference between the absolute value of the percentage decrease in extrusion pressure and the absolute value of the percentage change in weight. When the weight change is decreasing and the extrusion pressure change is increasing, it is necessary to increase the rotation speed of the drive motor and decrease the rotation speed of the auxiliary motor. At the same time, if the absolute value of the percentage decrease in extrusion pressure is greater than the absolute value of the percentage change in weight, the amount of additive reduction should be adjusted, and the amount of additive reduction should be reduced by the difference between the absolute value of the percentage decrease in extrusion pressure and the absolute value of the percentage change in weight.

7. The production method as described in claim 6, characterized in that, The hysteresis motor and the servo pump are electrically connected to the auxiliary motor, and the speed of the hysteresis motor and the servo pump is adjusted by half the speed adjustment ratio of the auxiliary motor.

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