Ash conveying pressure field regulation and control anti-blocking type pneumatic ash conveying equipment

Abstract

The utility model discloses a pneumatic ash conveying device capable of regulating and controlling an ash conveying pressure field to prevent blockage. Comprising a bottom plate, a temporary storage tank fixedly connected to the upper end of the bottom plate, an ash bin fixedly connected to the upper end of the temporary storage tank, a first gas injection pipe fixedly connected to the side wall of the temporary storage tank, a first gas injection mechanism fixedly connected to the gas inlet end of the first gas injection pipe, a second gas injection mechanism fixedly connected to the side wall of the temporary storage tank and a connecting pipe fixedly connected to the side wall of the temporary storage tank in a penetrating mode and used for discharging ash. The ash conveying box is fixedly connected to the output end of the connecting pipe, the pressure field adjusting mechanism is arranged on one side of the ash conveying box, the air inlet pipe is arranged on the other side of the ash conveying box, the third air injection mechanism is arranged on the air inlet pipe, and the ash outlet pipe is fixedly connected to the output end of the ash conveying box. The anti-blocking device has the advantages of active anti-blocking, high efficiency, energy conservation and reliable operation.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic conveying and powder engineering technology, specifically a pneumatic ash conveying equipment with adjustable ash conveying pressure field to prevent blockage. Background Technology

[0002] Pneumatic ash conveying technology is widely used in the conveying of powdery and granular materials in industries such as power and chemicals. Currently, this technology mostly adopts a conveying method based on a fixed air source pressure. Its system typically consists of basic components such as ash silos, pneumatic conveying equipment, ash conveying pipelines, and various valves. However, when conveying easily deposited materials such as fly ash, especially during system start-up, shutdown, or fluctuations in operating conditions, material deposition easily occurs inside the ash conveying pipelines, leading to blockages and seriously affecting the continuity and reliability of production.

[0003] Existing anti-clogging measures are mostly passive responses and treatments. On the one hand, a crude method of increasing the initial air pressure of the system is commonly used for prevention. This method not only consumes a lot of energy but also accelerates pipe wear. On the other hand, when blockage occurs, it often relies on manual tapping of the pipe or activation of high-pressure purging bypass for handling, which is inefficient and poses safety hazards. The fundamental problem is that the existing equipment structure and control strategy are simple and cannot perceive and actively regulate the "pressure field" formed inside the ash conveying pipeline in real time. This leads to uneven pressure distribution and unstable flow velocity along the pipeline, creating conditions for ash deposition.

[0004] Therefore, existing pneumatic ash conveying equipment suffers from the following structural defects: First, it lacks the ability to precisely and dynamically control the pressure field along the entire pipeline, making preventative intervention impossible; second, the traditional internal structure of the pipeline is simple, lacking active flow disturbance and unblocking designs for easily clogged points; and third, the coordination between system components is poor, making it difficult to form a stable and efficient conveying flow field. These problems collectively restrict further improvements in the reliability and energy efficiency of pneumatic ash conveying systems. Utility Model Content

[0005] The purpose of this invention is to provide a pneumatic ash conveying equipment with pressure field regulation and anti-clogging properties, which has the advantages of active anti-clogging, high efficiency and energy saving and reliable operation, and solves the problems in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A pneumatic ash conveying device with pressure field regulation and anti-clogging function includes a base plate, a temporary storage tank fixed to the upper part of the base plate, an ash hopper fixed to the upper part of the temporary storage tank, a first air injection pipe fixed to the side wall of the temporary storage tank, a first air injection mechanism fixed to the air inlet end of the first air injection pipe, a second air injection mechanism fixed to the side wall of the temporary storage tank, a through-type connecting pipe fixed to the side wall of the temporary storage tank for ash discharge, an ash conveying box fixed to the output end of the connecting pipe, a pressure field regulation mechanism set on one side of the ash conveying box, an air inlet pipe set on the other side of the ash conveying box, a third air injection mechanism set on the air inlet pipe, and an ash discharge pipe fixed to the output end of the ash conveying box.

[0008] A controller is installed at the upper part of the base plate, and multiple pressure sensors are fixed to the inner wall of the ash conveying box at equal intervals.

[0009] The pressure field regulating mechanism is also equipped with a positive anti-clogging mechanism and a reverse anti-clogging mechanism.

[0010] Preferably, the first air injection mechanism includes a first fan fixed to the upper end of the base plate, a second air injection pipe fixed to the air outlet end of the first fan, and a first valve body fixed to the second air injection pipe, wherein the air outlet end of the second air injection pipe is connected to the air inlet end of the first air injection pipe.

[0011] It is worth noting that the first air injection mechanism provides a stable and controllable airflow input through the first fan and the second air injection pipe, and in combination with the first valve body, it realizes precise adjustment of the airflow, thereby ensuring that the ash material is uniformly suspended and flows in the temporary storage tank, effectively preventing ash material deposition and initial blockage.

[0012] Preferably, the second air injection mechanism includes a second fan fixed to the upper end of the base plate and a third air injection pipe fixed to the air outlet of the second fan, wherein the air outlet of the third air injection pipe is connected to the air inlet of the side wall of the temporary storage tank.

[0013] It is worth noting that the second air injection mechanism supplements the temporary storage tank with auxiliary airflow through the second fan and the third air injection pipe, which enhances the strength and uniformity of pneumatic conveying in the tank and effectively prevents ash material from accumulating in corners or dead zones. This mechanism can work in conjunction with the first air injection mechanism to form multi-point and multi-directional airflow input, optimize the fluidization effect of ash material, and reduce frictional resistance and energy loss.

[0014] Preferably, a second fixing pipe is fixedly connected through the side wall of the temporary storage tank, and a plug is detachably installed on the inner wall of the end of the second fixing pipe away from the temporary storage tank.

[0015] It is worth noting that the design of the second fixed pipe and plug provides convenient access for maintenance and cleaning, allowing operators to quickly access the interior of the temporary storage tank and promptly remove accumulated dust or foreign objects, preventing blockages and performance degradation caused by long-term operation. This structure simplifies the maintenance process, reduces equipment downtime, and the sealing performance of the plug ensures no leakage during normal operation, maintaining system pressure stability.

[0016] Preferably, the third air injection mechanism includes a fourth fan fixed to the upper end of the base plate, a first fixed pipe fixed to the output end of the fourth fan, a second electric valve disposed on the first fixed pipe, and a third flow meter disposed on the first fixed pipe, wherein the output end of the first fixed pipe is connected to the input end of the air inlet pipe.

[0017] It is worth noting that the third air injection mechanism, through the integration of the fourth fan, the first fixed pipe, the second electric valve and the third flow meter, achieves precise control and monitoring of the airflow in the ash conveying box inlet pipe. The second electric valve allows for remote or automatic adjustment of the airflow, and the third flow meter provides real-time data feedback to ensure that the airflow parameters match the ash conveying requirements, thereby optimizing ash conveying efficiency and energy utilization.

[0018] Preferably, the pressure field regulating mechanism includes multiple third fans fixed to the upper end of the base plate, a first electric valve fixed to the output end of the third fans, a fourth air injection pipe fixed to the air outlet end of the first electric valve, and a first flow meter fixed to the fourth air injection pipe. The upper ends of two adjacent fourth air injection pipes are respectively fixed to a first vertical pipe and a second vertical pipe. The upper ends of the multiple first vertical pipes and the multiple second vertical pipes are jointly fixed to a converging pipe. A second flow meter is provided on the converging pipe. The air outlet end of the fourth air injection pipe passes through one side of the ash conveying box and extends into the interior of the ash conveying box.

[0019] It is worth noting that the pressure field regulating mechanism dynamically constructs and adjusts the pressure distribution within the ash conveying box through the coordinated action of multiple third fans, the first electric valve, the fourth air injection pipe, and the flow meter, forming a uniform pressure field. This effectively prevents ash blockage caused by local high or low pressure areas. The mechanism can optimize airflow input in real time based on pressure sensor data, improving the uniformity and efficiency of ash conveying. At the same time, the first electric valve and the flow meter achieve precise flow control, reducing energy waste. The pipe network layout composed of the main pipe, the first vertical pipe, and the second vertical pipe enhances the airflow coverage, ensuring smooth ash flow. It is suitable for various working conditions, improving the adaptability and reliability of the equipment and reducing the maintenance frequency.

[0020] Preferably, the inner wall of the first vertical pipe is provided with a positive anti-blocking mechanism. The positive anti-blocking mechanism includes a fixing ring fixed to the upper part of the inner wall of the first vertical pipe, a spring fixed to the lower end of the fixing ring, a steel ball fixed to the lower end of the spring, and two triangular bodies fixed to the lower part of the inner wall of the first vertical pipe. There is a gap between the two triangular bodies, the steel ball is located above the triangular bodies, and the distance between the steel ball and the triangular bodies is less than three millimeters.

[0021] It is worth noting that the forward anti-clogging mechanism, through the design of springs, steel balls, and triangular bodies, achieves automatic unblocking of the forward airflow. When the airflow is normal, the steel balls are suspended by the airflow pressure, keeping the channel unobstructed. Once a blockage occurs, the change in airflow pressure causes the steel balls to come into contact with the triangular bodies, generating vibration or impact, effectively breaking or removing accumulated ash. This mechanism has a simple structure, responds quickly, requires no external power, reducing energy consumption and maintenance needs. At the same time, the small distance between the steel balls and the triangular bodies ensures high sensitivity, enabling timely handling of minor blockages, preventing the problem from escalating, thereby extending equipment life and improving the continuity and stability of the ash conveying system.

[0022] Preferably, the reverse anti-blocking mechanism and the forward anti-blocking mechanism are completely opposite, with the reverse anti-blocking mechanism located on the inner wall of the second vertical pipe.

[0023] It is worth noting that the reverse anti-clogging mechanism adopts a layout opposite to the forward mechanism, specifically designed for reverse airflow or backflow situations, ensuring effective prevention of blockage even when the airflow direction changes. This mechanism automatically triggers a clearing action in reverse airflow, maintaining unobstructed passage and preventing the accumulation of ash material in reverse flow. This bidirectional anti-clogging design enhances the system's comprehensiveness and robustness, making it suitable for complex airflow environments, reducing downtime and maintenance costs, while improving the equipment's adaptability and reliability under varying operating conditions, ensuring long-term efficient operation.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0025] 1. This utility model constructs a pressure field that can be sensed and dynamically controlled in real time within the ash conveying box by cooperating with a pressure field adjustment mechanism and multiple equidistant pressure sensors. Specifically, based on the data fed back by the pressure sensors, the controller instructs multiple third fans and their first electric valves to work together to deliver precisely controlled airflow to multiple points within the ash conveying box through the fourth air injection pipe. This actively intervenes in and optimizes the pressure distribution within the box, effectively eliminating flow rate instability and ash deposition caused by uneven pressure. It achieves a fundamental shift from passive treatment to active prevention, significantly improving the stability and reliability of the ash conveying process.

[0026] 2. This utility model, through the coordinated arrangement of a first, second, and third air injection mechanism, achieves multi-point, refined airflow supply for the fluidization and conveying process of ash material. The first fan and the first valve body ensure the stability of the initial fluidization in the temporary storage tank; the second fan, as an auxiliary air source, enhances the uniformity of fluidization and eliminates dead zones; the fourth fan, the second electric valve, and the third flow meter ensure the accuracy and stability of the main airflow in the ash conveying box. This multi-mechanism coordinated air supply mode not only avoids the energy waste and pipeline wear caused by a single high-pressure source, but also enhances the system's ability to cope with fluctuations in operating conditions through complementary airflow, achieving the dual goals of high efficiency, energy saving, and stable operation.

[0027] 3. This utility model integrates forward and reverse anti-blocking mechanisms into the pressure field adjustment mechanism. This mechanism utilizes the pure mechanical principle that the steel ball is suspended when the airflow is normal and vibrates when the steel ball collides with the triangular body when blocked. It can automatically and instantly clear blockages in both the forward and reverse directions of the airflow without external control. This built-in active turbulence and blockage clearing mechanism can effectively break up the initial ash blockage or disperse the accumulation trend. It specifically solves the problem that traditional equipment lacks effective intervention measures at easy-to-block points, greatly reduces the need for manual cleaning and the risk of system downtime, and ensures long-term continuous operation. Attached Figure Description

[0028] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0029] Figure 2 The diagram shown is a three-dimensional structural schematic of the first and second gas injection mechanisms of this utility model.

[0030] Figure 3 The diagram shown is a three-dimensional structural schematic of the pressure field adjustment mechanism of this utility model.

[0031] Figure 4 The diagram shown is a schematic of the pressure sensor of this utility model;

[0032] Figure 5 The image shown is a top view of the third air injection mechanism of this utility model;

[0033] Figure 6 The diagram shown is a cross-sectional view of the first vertical tube of this utility model.

[0034] Figure 7 The diagram shown is a cross-sectional view of the second vertical tube of this utility model.

[0035] Attached reference numerals: 1. Base plate; 2. Temporary storage tank; 3. Connecting pipe; 4. Ash conveying box; 5. Ash discharge pipe; 6. First air injection pipe; 7. First air injection mechanism; 71. First fan; 72. Second air injection pipe; 73. First valve body; 8. Second air injection mechanism; 81. Second fan; 82. Third air injection pipe; 9. Pressure field regulating mechanism; 91. Third fan; 92. First electric valve; 93. Fourth air injection pipe; 94. First flow meter; 95. Collection point Main pipe; 96, First vertical pipe; 961, Fixing ring; 962, Spring; 963, Steel ball; 964, Triangular body; 97, Second vertical pipe; 98, Second flow meter; 10, Ash hopper; 11, Air inlet pipe; 12, Third air injection mechanism; 121, Fourth fan; 122, First fixed pipe; 123, Second electric valve; 124, Third flow meter; 13, Controller; 14, Second fixed pipe; 15, Plug; 16, Pressure sensor. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] To address the problems of easy blockage, high energy consumption, and poor reliability caused by the inability to real-time sense and actively control the internal pressure field of ash conveying pipelines in existing technologies, the following technical solution is proposed. Please refer to [link / reference]. Figures 1-7 ;

[0038] A pneumatic ash conveying device with pressure field regulation and anti-clogging function includes a base plate 1, a temporary storage tank 2 fixed to the upper end of the base plate 1, an ash hopper 10 fixed to the upper end of the temporary storage tank 2, a first air injection pipe 6 fixed to the side wall of the temporary storage tank 2, a first air injection mechanism 7 fixed to the air inlet end of the first air injection pipe 6, a second air injection mechanism 8 fixed to the side wall of the temporary storage tank 2, a through-type connecting pipe 3 fixed to the side wall of the temporary storage tank 2 for ash discharge, an ash conveying box 4 fixed to the output end of the connecting pipe 3, a pressure field regulation mechanism 9 set on one side of the ash conveying box 4, an air inlet pipe 11 set on the other side of the ash conveying box 4, a third air injection mechanism 12 set on the air inlet pipe 11, and an ash discharge pipe 5 fixed to the output end of the ash conveying box 4.

[0039] A controller 13 is installed on the upper end of the base plate 1, and multiple pressure sensors 16 are fixedly connected to the inner wall of the ash conveying box 4 at equal intervals.

[0040] The pressure field regulating mechanism 9 is also equipped with a positive anti-clogging mechanism and a reverse anti-clogging mechanism.

[0041] In use, the first air injection mechanism 7 or the second air injection mechanism 8 is turned on to input the ash in the temporary storage tank 2 into the ash conveying box 4 through the connecting pipe 3. The pressure sensor 16 senses the pressure in each area of ​​the ash conveying box 4. The pressure field adjustment mechanism 9 can be turned on to adjust the pressure in the ash conveying box 4. The third air injection mechanism 12 can be turned on to improve the conveying effect of the ash in the ash conveying box 4. Finally, the ash is discharged through the ash outlet pipe 5. During the ash conveying process, the positive anti-blocking mechanism and the reverse anti-blocking mechanism set in the pressure field adjustment mechanism 9 can prevent blockage in the pressure field adjustment mechanism 9.

[0042] In this embodiment, specifically: the first air injection mechanism 7 includes a first fan 71 fixed to the upper end of the base plate 1, a second air injection pipe 72 fixed to the air outlet end of the first fan 71, and a first valve body 73 fixed to the second air injection pipe 72. The air outlet end of the second air injection pipe 72 is connected to the air inlet end of the first air injection pipe 6.

[0043] In this embodiment, specifically: the second air injection mechanism 8 includes a second fan 81 fixed to the upper end of the base plate 1 and a third air injection pipe 82 fixed to the air outlet of the second fan 81. The air outlet of the third air injection pipe 82 is connected to the air inlet of the side wall of the temporary storage tank 2.

[0044] In this embodiment, specifically: a second fixing pipe 14 is fixedly connected through the side wall of the temporary storage tank 2, and a plug 15 is detachably installed on the inner wall of the end of the second fixing pipe 14 away from the temporary storage tank 2.

[0045] In this embodiment, specifically: the third air injection mechanism 12 includes a fourth fan 121 fixed to the upper end of the base plate 1, a first fixed pipe 122 fixed to the output end of the fourth fan 121, a second electric valve 123 disposed on the first fixed pipe 122, and a third flow meter 124 disposed on the first fixed pipe 122. The output end of the first fixed pipe 122 is connected to the input end of the air inlet pipe 11.

[0046] In this embodiment, specifically: the pressure field adjustment mechanism 9 includes multiple third fans 91 fixed to the upper end of the base plate 1, a first electric valve 92 fixed to the output end of the third fan 91, a fourth air injection pipe 93 fixed to the air outlet end of the first electric valve 92, and a first flow meter 94 fixed to the fourth air injection pipe 93. The upper ends of two adjacent fourth air injection pipes 93 are respectively fixed to a first vertical pipe 96 and a second vertical pipe 97. The upper ends of multiple first vertical pipes 96 and multiple second vertical pipes 97 are jointly fixed to a collection pipe 95. A second flow meter 98 is provided on the collection pipe 95. The air outlet end of the fourth air injection pipe 93 passes through one side of the ash conveying box 4 and extends into the interior of the ash conveying box 4.

[0047] In this embodiment, specifically: the inner wall of the first vertical pipe 96 is provided with a positive anti-blocking mechanism, which includes a fixing ring 961 fixed to the upper part of the inner wall of the first vertical pipe 96, a spring 962 fixed to the lower end of the fixing ring 961, a steel ball 963 fixed to the lower end of the spring 962, and two triangular bodies 964 fixed to the lower part of the inner wall of the first vertical pipe 96. There is a gap between the two triangular bodies 964, and the steel ball 963 is located above the triangular bodies 964. The distance between the steel ball 963 and the triangular bodies 964 is less than three millimeters.

[0048] In this embodiment, specifically: the reverse anti-blocking mechanism and the forward anti-blocking mechanism are completely opposite, and the reverse anti-blocking mechanism is disposed on the inner wall of the second vertical tube 97.

[0049] Working principle: After the equipment is started, the controller 13 first controls the first fan 71 of the first air injection mechanism 7 to start. After the airflow is regulated by the second air injection pipe 72 and the first valve body 73, it enters the temporary storage tank 2 through the first air injection pipe 6 to initially fluidize the ash material from the ash silo 10.

[0050] At the same time, the second blower 81 of the second air injection mechanism 8 can be started independently or in conjunction with the third air injection pipe 82 to supplement the airflow to the temporary storage tank 2, ensuring that the ash material is fully fluidized and preventing it from settling in the tank. The fluidized ash material enters the ash conveying box 4 through the connecting pipe 3 under the action of the airflow.

[0051] At this time, multiple pressure sensors 16, which are equidistantly distributed on the inner wall of the ash conveying box 4, monitor the pressure data of each area in the box in real time and feed it back to the controller 13. Based on these pressure data, the controller 13 dynamically adjusts the multiple third fans 91 and the first electric valve 92 of the pressure field adjustment mechanism 9, so that the airflow is accurately measured by the fourth air injection pipe 93 and the first flow meter 94, and then injected into the ash conveying box 4 through the pipeline network composed of the summing pipe 95, the first vertical pipe 96 and the second vertical pipe 97, thereby actively constructing and maintaining a uniform and stable ash conveying pressure field, effectively preventing ash material from depositing due to uneven pressure.

[0052] At the same time, the fourth fan 121 of the third air injection mechanism 12 is started. After the airflow passes through the first fixed pipe 122 and is precisely controlled by the second electric valve 123 and the third flow meter 124, it provides the main conveying power to the ash conveying box 4 through the air inlet pipe 11. The ash material is finally discharged through the ash outlet pipe 5 under the push of the stable pressure field.

[0053] During the operation of the pressure field regulating mechanism 9, the forward anti-blocking mechanism and the reverse anti-blocking mechanism inside it continuously function: when the forward airflow is normal, the steel ball 963 in the first vertical pipe 96 is suspended at the lower end of the spring 962 under the action of the airflow, and the channel remains unobstructed; if a blockage occurs and causes a change in airflow pressure, the steel ball 963 falls and collides with the two triangular bodies 964 fixed to the lower part of the inner wall of the first vertical pipe 96, generating vibration to break or remove accumulated dust. Similarly, the reverse anti-blocking mechanism in the second vertical pipe 97 achieves the function of automatically clearing blockages of the reverse airflow in the opposite layout, thereby ensuring the unobstructed flow of the pressure field regulating channel in all aspects and ensuring the continuous, stable and efficient operation of the system.

[0054] As a further optimization of this embodiment, to ensure the long-term stable operation of the forward and reverse anti-clogging mechanisms in the pressure field regulating mechanism 9 and to prevent ash from accumulating around moving parts such as the spring 962 and steel ball 963, this equipment is designed with a corresponding maintenance mechanism. During regular system maintenance or shutdown, the controller 13 can start the third fan 91 of the pressure field regulating mechanism 9 and fully open the first electric valve 92 to introduce a continuous, high-intensity airflow into the first vertical pipe 96 and the second vertical pipe 97 for a period of time. This airflow will drive the steel ball 963 to generate high-frequency, large-amplitude vibrations and violently collide with the triangular body 964, thereby effectively shaking off and removing the ash adhering to the inside of the mechanism. In addition, the plug 15 can also be removed, facilitating manual cleaning of the connected pipes when necessary. This combination of active and passive maintenance design ensures the durability and reliability of the anti-clogging mechanism under complex working conditions and extends the service life of the equipment.

[0055] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0056] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A pneumatic ash conveying device with pressure field regulation and anti-clogging characteristics, characterized in that: It includes a base plate (1), a temporary storage tank (2) fixed to the upper end of the base plate (1), an ash hopper (10) fixed to the upper end of the temporary storage tank (2), a first air injection pipe (6) fixed to the side wall of the temporary storage tank (2), a first air injection mechanism (7) fixed to the air inlet end of the first air injection pipe (6), a second air injection mechanism (8) fixed to the side wall of the temporary storage tank (2), a through-type connecting pipe (3) fixed to the side wall of the temporary storage tank (2) for ash discharge, an ash conveying box (4) fixed to the output end of the connecting pipe (3), a pressure field adjustment mechanism (9) set on one side of the ash conveying box (4), an air inlet pipe (11) set on the other side of the ash conveying box (4), a third air injection mechanism (12) set on the air inlet pipe (11), and an ash discharge pipe (5) fixed to the output end of the ash conveying box (4). A controller (13) is installed at the top of the base plate (1), and multiple pressure sensors (16) are fixedly connected to the inner wall of the ash conveying box (4). The pressure field regulating mechanism (9) is also equipped with a positive anti-clogging mechanism and a reverse anti-clogging mechanism.

2. The pneumatic ash conveying equipment with pressure field regulation and anti-clogging as described in claim 1, characterized in that: The first air injection mechanism (7) includes a first fan (71) fixed to the upper end of the base plate (1), a second air injection pipe (72) fixed to the air outlet of the first fan (71), and a first valve body (73) fixed to the second air injection pipe (72). The air outlet of the second air injection pipe (72) is connected to the air inlet of the first air injection pipe (6).

3. The pneumatic ash conveying equipment with pressure field regulation and anti-clogging as described in claim 1, characterized in that: The second air injection mechanism (8) includes a second fan (81) fixed to the upper end of the base plate (1) and a third air injection pipe (82) fixed to the air outlet of the second fan (81). The air outlet of the third air injection pipe (82) is connected to the air inlet of the side wall of the temporary storage tank (2).

4. The pneumatic ash conveying equipment with pressure field regulation and anti-clogging as described in claim 1, characterized in that: The side wall of the temporary storage tank (2) is fixedly connected to a second fixing pipe (14), and a plug (15) can be detachably installed on the inner wall of the end of the second fixing pipe (14) away from the temporary storage tank (2).

5. The pneumatic ash conveying equipment with pressure field regulation and anti-clogging as described in claim 1, characterized in that: The third air injection mechanism (12) includes a fourth fan (121) fixed to the upper end of the base plate (1), a first fixed pipe (122) fixed to the output end of the fourth fan (121), a second electric valve (123) set on the first fixed pipe (122), and a third flow meter (124) set on the first fixed pipe (122). The output end of the first fixed pipe (122) is connected to the input end of the air inlet pipe (11).

6. The pneumatic ash conveying equipment with pressure field regulation and anti-clogging as described in claim 1, characterized in that: The pressure field regulating mechanism (9) includes multiple third fans (91) fixed to the upper end of the base plate (1), a first electric valve (92) fixed to the output end of the third fan (91), a fourth air injection pipe (93) fixed to the air outlet end of the first electric valve (92), and a first flow meter (94) fixed to the fourth air injection pipe (93). The upper ends of two adjacent fourth air injection pipes (93) are respectively fixed with a first vertical pipe (96) and a second vertical pipe (97). The upper ends of multiple first vertical pipes (96) and multiple second vertical pipes (97) are jointly fixed with a collection pipe (95). A second flow meter (98) is provided on the collection pipe (95). The air outlet end of the fourth air injection pipe (93) passes through one side of the ash conveying box (4) and extends into the interior of the ash conveying box (4).

7. The pneumatic ash conveying equipment with pressure field regulation and anti-clogging as described in claim 6, characterized in that: The inner wall of the first vertical tube (96) is provided with a positive anti-blocking mechanism. The positive anti-blocking mechanism includes a fixing ring (961) fixed to the upper part of the inner wall of the first vertical tube (96), a spring (962) fixed to the lower end of the fixing ring (961), a steel ball (963) fixed to the lower end of the spring (962), and two triangular bodies (964) fixed to the lower part of the inner wall of the first vertical tube (96). There is a gap between the two triangular bodies (964), and the steel ball (963) is located above the triangular body (964). The distance between the steel ball (963) and the triangular body (964) is less than three millimeters.

8. The pneumatic ash conveying equipment with pressure field regulation and anti-clogging as described in claim 7, characterized in that: The reverse anti-blocking mechanism is the opposite of the forward anti-blocking mechanism, and the reverse anti-blocking mechanism is located on the inner wall of the second vertical pipe (97).

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