A dust prevention and control device for the dry ash discharge system of a dry ash silo

Abstract

The present invention relates to the technical field of dry ash discharge equipment for ash silos, and in particular discloses a dust prevention and control device for a dry ash discharge system of an ash silo, including: a feeding mechanism is arranged at the bottom of the ash silo, and the feeding mechanism is used for transporting the ash material put into the ash silo; a bulk loading mechanism is connected to the feeding mechanism, and the bulk loading mechanism is used for discharging the ash material transported by the feeding mechanism; a control device is electrically connected to the feeding mechanism and the bulk loading mechanism, and the control device is used for controlling the feeding mechanism and the bulk loading mechanism. By arranging the feeding mechanism at the bottom of the ash silo and connecting the other end of the feeding mechanism to the bulk loading mechanism, the electric lock hopper feeder in the traditional dry ash discharge system of the ash silo is eliminated by transporting the ash material to the bulk loading mechanism through the feeding mechanism, thereby reducing the floor space of the traditional dry ash discharge system of the ash silo and also reducing the cost of later maintenance.

Description

Technical Field

[0001] The present invention relates to the technical field of dry ash discharge equipment for ash silos, and particularly to a dust prevention and control device for a dry ash discharge system of an ash silo. Background Art

[0002] Thermal power generation is a common means for major power plants, and the dry ash discharge system of the ash silo is undoubtedly an important part of it.

[0003] However, at present, most of the commonly used dry ash discharge systems for ash silos in thermal power plants are composed of a silo body (concrete structure or steel structure), a pulse bag filter, an electric airtight feeder, a pressure vacuum relief valve, a bottom discharge device of the silo, a double-shaft humidifying mixer, a dry ash bulk loader, an air electric heater, a gasification blower, a gasification trough, etc. They occupy a huge space and have a relatively high later maintenance cost.

[0004] In view of this, there is an urgent need to invent a dry ash discharge device for an ash silo to solve the problems that the dry ash discharge system used in traditional thermal power plants occupies a huge space and has a relatively high later maintenance cost. Summary of the Invention

[0005] The purpose of the present invention is to provide a dust prevention and control device for a dry ash discharge system of an ash silo to solve the problems that the traditional dry ash discharge system of an ash silo occupies a huge space and has a relatively high later maintenance cost.

[0006] To achieve the above purpose, the present invention provides a dust prevention and control device for a dry ash discharge system of an ash silo, which is arranged at the bottom of the ash silo. This device includes:

[0007] A feeding mechanism, arranged at the bottom of the ash silo, and the feeding mechanism is used for transporting the ash material discharged from the ash silo.

[0008] A bulk loading mechanism, communicated with the feeding mechanism, and the bulk loading mechanism is used for discharging the ash material transported by the feeding mechanism.

[0009] A control device, electrically connected to the feeding mechanism and the bulk loading mechanism, and the control device is used for controlling the feeding mechanism and the bulk loading mechanism.

[0010] Further, the feeding mechanism includes:

[0011] A discharging funnel, connected to the discharging port of the ash silo, and the discharging funnel is used for collecting the ash material discharged from the ash silo.

[0012] A first image detection device, arranged at the bottom end of the ash silo, connected to the outer wall of the ash silo, and the first image detection device is used for acquiring the internal image of the discharging funnel.

[0013] The feeding module is connected to the discharging funnel, and the feeding module is used to transport the ash material to the bulk loading mechanism.

[0014] Furthermore, the feeding module includes:

[0015] A box body is connected to the discharging funnel, and a first cavity is arranged inside the box body;

[0016] A one-way valve is opened on one side wall of the box body, and the one-way valve is provided with a valve flap and a spring;

[0017] A driving motor is arranged at the other end of the box body;

[0018] A stirring paddle is arranged inside the box body, and the other end of the stirring paddle penetrates through one end of the box body and is connected to the driving motor.

[0019] Furthermore, the bulk loading mechanism includes:

[0020] A storage bin is connected to the end of the box body where the one-way valve is opened, and a control valve is opened at the bottom of the storage bin. The storage bin is used to store the ash material transported by the feeding module;

[0021] A second image detection module is arranged on the inner top surface of the storage bin. The second image detection module is used to detect the dust content in the storage bin;

[0022] A bulk loader is connected to the bottom of the storage bin, and the bulk loader is used to discharge the ash material stored in the storage bin.

[0023] Furthermore, the storage bin further includes:

[0024] A dust removal device, one end of which is connected to one side of the storage bin, and the other end of which is connected to the discharging funnel. The dust removal device is used to divert the dust in the storage bin.

[0025] Furthermore, the control device includes:

[0026] An acquisition module is electrically connected to the first image detection device and the second image detection device. The acquisition module is used to acquire the volume information of the ash material in the discharging funnel, and the acquisition module is also used to acquire the volume information of the ash material in the powder storage bin;

[0027] A processing module adjusts the rotation speed of the driving motor, the spring force of the spring of the one-way valve, and the diversion speed of the dust removal device according to the volume information of the ash material in the discharging funnel and the volume information of the ash material in the powder storage bin;

[0028] A control module, electrically connected to the drive motor, the one-way valve and the dust removal device, for controlling the drive motor, the one-way valve and the dust removal device.

[0029] Further, the processing module is further configured to obtain the volume information of the ash material in the discharge hopper, obtain the real-time ash material volume △E in the discharge hopper in the volume information of the ash material in the discharge hopper, the processing module is further configured to obtain the current drive motor speed △Y, and the processing module is further configured to adjust the current drive motor speed △Y according to the real-time ash material volume △E in the discharge hopper;

[0030] The processing module is further configured to set a first preset ash material volume E1 in the discharge hopper, a second preset ash material volume E2 in the discharge hopper, a third preset ash material volume E3 in the discharge hopper, and a fourth preset ash material volume E4 in the discharge hopper; the processing module is further configured to set a first preset adjustment coefficient R1, a second preset adjustment coefficient R2, a third preset adjustment coefficient R3, and a fourth preset adjustment coefficient R4, and 0 < R1 < R2 < R3 < R4 < 1;

[0031] When the processing module is further configured to adjust the current drive motor speed △Y according to the real-time ash material volume △E in the discharge hopper, it adjusts the current drive motor speed △Y according to the relationship between the real-time ash material volume △E in the discharge hopper and each preset ash material volume in the discharge hopper;

[0032] When △E < E1, the current drive motor speed △Y is not adjusted;

[0033] When E1 ≤ △E < E2, the first preset adjustment coefficient R1 is selected to adjust the current drive motor speed, and the adjusted drive motor speed is △Y * R1;

[0034] When E2 ≤ △E < E3, the second preset adjustment coefficient R2 is selected to adjust the current drive motor speed, and the adjusted drive motor speed is △Y * R2;

[0035] When E3 ≤ △E < E4, the third preset adjustment coefficient R3 is selected to adjust the current drive motor speed, and the adjusted drive motor speed is △Y * R3;

[0036] When E4 ≤ △E, the fourth preset adjustment coefficient R4 is selected to adjust the current drive motor speed, and the adjusted drive motor speed is △Y * R4.

[0037] Further, the processing module is also used to adjust the current driving motor speed by selecting the i-th preset adjustment coefficient Ri, and the adjusted driving motor speed is △Y*Ri, where i = 1, 2, 3, 4. The processing module is also used to obtain the real-time ash material volume △T in the powder storage bin in the ash material volume information of the powder storage bin, and correct the adjusted driving motor speed according to the real-time ash material volume △T in the powder storage bin;

[0038] The processing module is also used to set a first preset ash material volume T1 in the powder storage bin, a second preset ash material volume T2 in the powder storage bin, a third preset ash material volume T3 in the powder storage bin, and a fourth preset ash material volume T4 in the powder storage bin; the processing module is also used to set a first preset correction coefficient P1, a second preset correction coefficient P2, a third preset correction coefficient P3, and a fourth preset correction coefficient P4, and 1 < R1 < R2 < R3 < R4 < 0.75;

[0039] When the processing module corrects the adjusted motor speed △Y*Ri according to the real-time ash material volume △T in the powder storage bin, the processing module is also used to correct the adjusted driving motor speed according to the relationship between the real-time ash material volume △T in the powder storage bin and the ash material volume in each preset powder storage bin;

[0040] When △T < T1, the adjusted motor speed is not corrected;

[0041] When T1 ≤ △T < T2, the first preset correction coefficient P1 is selected to correct the adjusted driving motor speed, and the corrected driving motor speed is △Y*Ri*P1;

[0042] When T2 ≤ △T < T3, the second preset correction coefficient P2 is selected to correct the adjusted driving motor speed, and the corrected driving motor speed is △Y*Ri*P2;

[0043] When T3 ≤ △T < T4, the third preset correction coefficient P3 is selected to correct the adjusted driving motor speed, and the corrected driving motor speed is △Y*Ri*P3;

[0044] When T4 ≤ △T, the fourth preset correction coefficient P4 is selected to correct the adjusted driving motor speed, and the corrected driving motor speed is △Y*Ri*P4.

[0045] Further, when the processing module is further configured to correct the adjusted driving motor speed by selecting the i-th preset correction coefficient Pi, the corrected driving motor speed is △N = △Y * Ri * Pi, where i = 1, 2, 3, 4. The processing module is further configured to obtain the spring force △W of the spring inside the current one-way valve, and adjust the spring force △W of the one-way valve spring according to the revised driving motor speed △N;

[0046] The processing module is further configured to set the first preset corrected driving motor speed as N1, the second preset corrected driving motor speed as N2, the third preset corrected driving motor speed as N3, and the fourth preset corrected driving motor speed as N4; the processing module is further configured to set the first preset adjustment coefficient X1, the second preset adjustment coefficient X2, the third preset adjustment coefficient X3, and the fourth preset adjustment coefficient X4, and 0 < X1 < X2 < X3 < X4 < 1;

[0047] When the processing module is further configured to adjust the spring force △W of the one-way valve spring according to the corrected driving motor speed △N, the processing module is further configured to adjust the spring force △W of the one-way valve spring according to the relationship between the modified driving motor speed △N and each preset modified driving motor speed;

[0048] When △N < N1, the spring force of the one-way valve spring is not adjusted;

[0049] When N1 ≤ △N < N2, the first preset adjustment coefficient X1 is selected to adjust the spring force of the one-way valve spring, and the adjusted spring force of the one-way valve spring is △W * X1;

[0050] When N2 ≤ △N < N3, the second preset adjustment coefficient X2 is selected to adjust the spring force of the one-way valve spring, and the adjusted spring force of the one-way valve spring is △W * X2;

[0051] When N3 ≤ △N < N4, the third preset adjustment coefficient X3 is selected to adjust the spring force of the one-way valve spring, and the adjusted spring force of the one-way valve spring is △W * X3;

[0052] When N4 ≤ △N, the fourth preset adjustment coefficient X4 is selected to adjust the spring force of the one-way valve spring, and the adjusted spring force of the one-way valve spring is △W * X4.

[0053] Further, the processing module is further configured to obtain the dust concentration information in the powder storage bin, obtain the real-time dust concentration △J in the dust concentration information in the powder storage bin, the processing module is further configured to obtain the current diversion speed △K in the dust removal device, and adjust the diversion speed △K according to the real-time dust concentration △J;

[0054] The processing module is further configured to set a first preset dust concentration J1, a second preset dust concentration J2, a third preset dust concentration J3, and a fourth preset dust concentration J4; the processing module is further configured to set a first preset adjustment coefficient L1, a second preset adjustment coefficient L2, a third preset adjustment coefficient L3, and a fourth preset adjustment coefficient L4, and 0 < L1 < L2 < L3 < L4 < 1;

[0055] When △J < J1, the diversion velocity △K is not adjusted;

[0056] When J1 ≤ △J < J2, the first preset adjustment coefficient L1 is selected to adjust the diversion velocity, and the adjusted diversion velocity is △K * L1;

[0057] When J2 ≤ △J < J3, the second preset adjustment coefficient L2 is selected to adjust the diversion velocity, and the adjusted diversion velocity is △K * L2;

[0058] When J3 ≤ △J < J4, the third preset adjustment coefficient L3 is selected to adjust the diversion velocity, and the adjusted diversion velocity is △K * L3;

[0059] When J4 ≤ △J, the fourth preset adjustment coefficient L4 is selected to adjust the diversion velocity, and the adjusted diversion velocity is △K * L4.

[0060] Compared with the prior art, the dust prevention and control device for the dry ash discharge system of the ash silo in the embodiment of the present invention has the beneficial effects that: by arranging the feeding mechanism at the bottom of the ash silo, the ash material is pushed open by the stirring paddle, the valve flap of the one-way valve transports the ash material into the storage bin, and after the transportation is completed, the valve flap is reset by the spring to seal the storage bin. After the ash material is discharged by the bulk module, the subsequent dust suction and diversion work is carried out, eliminating the traditional electric air lock feeder, thereby reducing the occupied space of the dry ash discharge system of the ash silo in the traditional sense, and at the same time reducing the later maintenance cost.

[0061] The dust prevention and control device for the dry ash discharge system of the ash silo in the embodiment of the present invention adjusts the speed of the stirring paddle by obtaining the real-time ash material volume in the discharge hopper and the real-time ash material volume in the storage bin, avoiding long-term high-intensity operation, thereby extending the maintenance cycle and further reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Figure 1 is a schematic structural diagram of a dust prevention and control device for a dry ash discharge system of an ash silo in an embodiment of the present invention;

[0063] Figure 2 is a block diagram of the control device in an embodiment of the present invention.

[0064] In the figure, 1 is the ash silo; 4 is the dust removal device; 21 is the discharge funnel; 221 is the drive motor; 222 is the stirring paddle; 223 is the box body; 31 is the storage bin; 32 is the bulk module; 300 is the acquisition module; 400 is the processing module; 500 is the control module. Specific Embodiments

[0065] The following combines the drawings and embodiments to further describe in detail the specific embodiments of the present invention. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0066] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0067] The terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise stated, the meaning of "a plurality" is two or more.

[0068] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0069] As Figure 1 shown, a dust prevention and control device for the dry ash discharge system of an ash silo 1 in a preferred embodiment of the embodiment of the present invention is arranged at the bottom of the ash silo 1 and includes: a feeding mechanism, a bulk mechanism, and a control device.

[0070] Specifically, the feeding mechanism is arranged at the bottom of the ash silo 1, and the feeding mechanism is used to transport the ash material discharged from the ash silo 1.

[0071] Specifically, the bulk mechanism is connected to the feeding mechanism, and the bulk mechanism is used to discharge the ash material transported by the feeding mechanism.

[0072] Specifically, the control device is electrically connected to the feeding mechanism and the bulk discharging mechanism, and the control device is used to control the feeding mechanism and the bulk discharging mechanism.

[0073] It can be understood that the dust prevention and control equipment for the dry ash discharge system of an ash silo 1 in this embodiment is composed of a feeding mechanism, a bulk discharging mechanism, and a control device. By arranging the feeding mechanism at the bottom of the ash silo 1 to transport the ash material to the bulk discharging mechanism, and then the bulk discharging mechanism discharges the ash material, the electric lock hopper feeder in the traditional dry ash discharge system of the ash silo 1 is omitted, reducing the occupied space and also reducing the cost of later maintenance.

[0074] Specifically, the feeding mechanism in this embodiment includes: a discharging funnel 21, a first image detection device, and a feeding module.

[0075] Specifically, the discharging funnel 21 is connected to the discharging port of the ash silo 1, and the discharging funnel 21 is used to collect the ash material put into the ash silo 1.

[0076] Specifically, the first image detection device is arranged at the bottom end of the ash silo 1 and is connected to the outer wall of the ash silo 1. The first image detection device is used to obtain the internal image of the discharging funnel 21.

[0077] Specifically, the feeding module is communicated with the discharging funnel 21, and the feeding module is used to transport the ash material to the bulk discharging mechanism.

[0078] It can be understood that by connecting the discharging funnel 21 to the bottom end of the ash silo 1 to form a closed space, air pollution caused during the material guiding from the ash silo 1 is prevented. The first image detection device collects the volume of the ash material in the discharging funnel 21 and sends it to the control device, and then the control device controls the conveying speed of the feeding module for the ash material.

[0079] Specifically, the feeding module in this embodiment includes: a box body 223, a one-way valve, a driving motor, and a stirring paddle 222.

[0080] Specifically, the top end of the box body 223 is connected to the discharging funnel 21, and a first cavity is arranged inside the box body 223.

[0081] Specifically, the one-way valve is opened on one side wall of the box body 223, and the one-way valve is provided with a valve flap and a spring.

[0082] Specifically, the driving motor is arranged at the other end of the box body 223.

[0083] Specifically, the stirring paddle 222 is arranged inside the box body 223, and the other end of the stirring paddle 222 passes through one end of the box body 223 and is connected to the driving motor.

[0084] It can be understood that the feeding module in this embodiment is composed of a box body 223, a one-way valve, a driving motor, and a stirring paddle 222. By connecting the box body 223 to the discharging funnel 21, the ash material discharged from the ash silo 1 can be accurately put into the box body 223 for transportation. The driving motor drives the stirring paddle 222 to rotate, so that the ash material continuously rotates forward on the stirring paddle 222, pushing open the valve flap of the one-way valve and transporting it to the bulk loading mechanism. After the transportation is completed, the valve flap is reset by the spring to close the storage bin 31, eliminating the traditional electric air-lock feeder, thereby reducing the floor space occupied by the dry ash discharge system of the ash silo 1 in the traditional method and further reducing the later maintenance cost.

[0085] Specifically, the bulk loading mechanism in this embodiment includes: a storage bin 31, a second image detection module, and a bulk loader.

[0086] Specifically, the storage bin 31 is connected to the end of the box body 223 where the one-way valve is provided, and a control valve is provided at the bottom of the storage bin 31. The storage bin 31 is used to store the ash material transported by the feeding module.

[0087] Specifically, the second image detection module is arranged on the inner top surface of the storage bin 31, and the second image detection module is used to detect the dust content in the storage bin 31.

[0088] Specifically, the bulk loader is communicated with the bottom of the storage bin 31, and the bulk loader is used to discharge the ash material stored in the storage bin 31.

[0089] Specifically, the storage bin 31 in this embodiment further includes: a dust removal device 4, one end of which is connected to one side of the storage bin 31, and the other end of the dust removal device 4 is connected to the discharging funnel 21. The dust removal device 4 is used to divert the dust in the storage bin 31.

[0090] It can be understood that the bulk loading mechanism in this embodiment is composed of a storage bin 31, a second image detection module, and a bulk loader. By arranging the second image detection module in the storage bin 31, the volume of the ash material in the storage bin 31 and the dust concentration in the space of the storage bin 31 are detected, and the dust removal work of the storage bin 31 is carried out according to the detected volume of the ash material in the storage bin 31 and the dust concentration in the space of the storage bin 31.

[0091] It can be seen that in the above embodiments, by arranging a discharge funnel 21 and a feeding module at the bottom of the ash silo 1, the ash discharged from the ash silo 1 is transported into the storage bin 31. The stirring paddle 222 in the feeding module rotates and pushes the ash forward, thereby pushing open the flap of the one-way valve, enabling the ash to enter the storage bin 31. After the ash enters the storage bin 31, the one-way valve closes the storage bin 31 by resetting through the spring; when discharging the ash in the storage bin 31 through the bulk module 32, the dust removal device 4 is started by detecting the dust concentration in the storage bin 31 through the second image detection module, and the dust in the storage bin 31 is diverted into the discharge funnel 21 for the next discharge.

[0092] In a preferred embodiment based on the above embodiments, referring to Figure 2 As shown, the control device in the embodiment of the present invention includes: a collection module 300, a processing module 400, and a control module 500.

[0093] Specifically, the collection module 300 is electrically connected to the first image detection device and the second image detection device. The collection module 300 is used to collect the volume information of the ash in the discharge funnel 21, and the collection module 300 is also used to collect the volume information of the ash in the powder storage bin.

[0094] Specifically, the processing module 400 adjusts the rotation speed of the drive motor 221, the spring force of the one-way valve spring, and the diversion speed of the dust removal device 4 according to the volume information of the ash in the discharge funnel 21 and the volume information of the ash in the powder storage bin.

[0095] Specifically, the control module 500 is electrically connected to the drive motor 221, the one-way valve, and the dust removal device 4. The control module 500 is used to control the drive motor 221, the one-way valve, and the dust removal device 4.

[0096] Specifically, the processing module 400 is further used to obtain the volume information of the ash in the discharge funnel 21, obtain the real-time ash volume △E in the discharge funnel 21 in the volume information of the ash in the discharge funnel 21. The processing module 400 is also used to obtain the current rotation speed △Y of the drive motor 221, and the processing module 400 is further used to adjust the current rotation speed △Y of the drive motor 221 according to the real-time ash volume △E in the discharge funnel 21.

[0097] Specifically, the processing module 400 is further used to set a first preset ash volume E1 in the discharge funnel 21, a second preset ash volume E2 in the discharge funnel 21, a third preset ash volume E3 in the discharge funnel 21, and a fourth preset ash volume E4 in the discharge funnel 21; the processing module 400 is also used to set a first preset adjustment coefficient R1, a second preset adjustment coefficient R2, a third preset adjustment coefficient R3, and a fourth preset adjustment coefficient R4, and 0 < R1 < R2 < R3 < R4 < 1;

[0098] When the processing module 400 is further used to adjust the rotation speed △Y of the current driving motor 221 according to the real-time ash volume △E in the discharging hopper 21, the rotation speed △Y of the current driving motor 221 is adjusted according to the relationship between the real-time ash volume △E in the discharging hopper 21 and the ash volumes in each preset discharging hopper 21;

[0099] When △E < E1, the rotation speed △Y of the current driving motor 221 is not adjusted;

[0100] When E1 ≤ △E < E2, the first preset adjustment coefficient R1 is selected to adjust the rotation speed of the current driving motor 221, and the adjusted rotation speed of the driving motor 221 is △Y * R1;

[0101] When E2 ≤ △E < E3, the second preset adjustment coefficient R2 is selected to adjust the rotation speed of the current driving motor 221, and the adjusted rotation speed of the driving motor 221 is △Y * R2;

[0102] When E3 ≤ △E < E4, the third preset adjustment coefficient R3 is selected to adjust the rotation speed of the current driving motor 221, and the adjusted rotation speed of the driving motor 221 is △Y * R3;

[0103] When E4 ≤ △E, the fourth preset adjustment coefficient R4 is selected to adjust the rotation speed of the current driving motor 221, and the adjusted rotation speed of the driving motor 221 is △Y * R4.

[0104] Specifically, when the processing module 400 is further used to select the i-th preset adjustment coefficient Ri to adjust the rotation speed of the current driving motor 221, and the adjusted rotation speed of the driving motor 221 is △Y * Ri, where i = 1, 2, 3, 4, the processing module 400 is further used to obtain the real-time ash volume △T in the powder storage bin from the ash volume information in the powder storage bin, and correct the adjusted rotation speed of the driving motor 221 according to the real-time ash volume △T in the powder storage bin.

[0105] Specifically, the processing module 400 is further used to set a first preset ash volume T1 in the powder storage bin, a second preset ash volume T2 in the powder storage bin, a third preset ash volume T3 in the powder storage bin, and a fourth preset ash volume T4 in the powder storage bin; the processing module 400 is further used to set a first preset correction coefficient P1, a second preset correction coefficient P2, a third preset correction coefficient P3, and a fourth preset correction coefficient P4, and 1 < R1 < R2 < R3 < R4 < 0.75;

[0106] When the processing module 400 is further used to correct the adjusted motor rotation speed △Y * Ri according to the real-time ash volume △T in the powder storage bin, the processing module 400 is further used to correct the adjusted rotation speed of the driving motor 221 according to the relationship between the real-time ash volume △T in the powder storage bin and the ash volumes in each preset powder storage bin;

[0107] When △T < T1, the adjusted motor speed is not corrected.

[0108] When T1 ≤ △T < T2, the first preset correction coefficient P1 is selected to correct the speed of the adjusted drive motor 221, and the corrected speed of the drive motor 221 is △Y * Ri * P1.

[0109] When T2 ≤ △T < T3, the second preset correction coefficient P2 is selected to correct the speed of the adjusted drive motor 221, and the corrected speed of the drive motor 221 is △Y * Ri * P2.

[0110] When T3 ≤ △T < T4, the third preset correction coefficient P3 is selected to correct the speed of the adjusted drive motor 221, and the corrected speed of the drive motor 221 is △Y * Ri * P3.

[0111] When T4 ≤ △T, the fourth preset correction coefficient P4 is selected to correct the speed of the adjusted drive motor 221, and the corrected speed of the drive motor 221 is △Y * Ri * P4.

[0112] It can be understood that in the embodiment of the present invention, by obtaining the volume of the ash material in the discharge hopper 21 and the volume of the ash material in the storage bin 31, the transportation speed of the feeding module is controlled, and the transportation speed of the feeding module is determined by the rotational speed of the drive motor 221. Furthermore, by controlling the rotational speed of the drive motor 221 through the volume of the ash material in the discharge hopper 21 and the volume of the ash material in the storage bin 31, the problem of shortening the maintenance cycle and increasing the maintenance cost caused by the long-term high-intensity operation of the drive motor 221 is avoided.

[0113] Specifically, the processing module 400 is further configured to, when selecting the i-th preset correction coefficient Pi to correct the speed of the adjusted drive motor 221, the corrected speed of the drive motor 221 is △N = △Y * Ri * Pi, where i = 1, 2, 3, 4. The processing module 400 is further configured to obtain the spring force △W of the spring inside the current one-way valve, and adjust the spring force △W of the one-way valve spring according to the revised rotational speed △N of the drive motor 221.

[0114] Specifically, the processing module 400 is further configured to set the first preset corrected rotational speed of the drive motor 221 as N1, the second preset corrected rotational speed of the drive motor 221 as N2, the third preset corrected rotational speed of the drive motor 221 as N3, and the fourth preset corrected rotational speed of the drive motor 221 as N4. The processing module 400 is further configured to set the first preset adjustment coefficient X1, the second preset adjustment coefficient X2, the third preset adjustment coefficient X3, and the fourth preset adjustment coefficient X4, and 0 < X1 < X2 < X3 < X4 < 1.

[0115] The processing module 400 is further configured to, when adjusting the spring force ΔW of the one-way valve spring according to the adjusted rotational speed ΔN of the drive motor 221, adjust the spring force ΔW of the one-way valve spring according to the relationship between the modified rotational speed ΔN of the drive motor 221 and each preset modified rotational speed of the drive motor 221;

[0116] When ΔN < N1, the spring force of the one-way valve spring is not adjusted;

[0117] When N1 ≤ ΔN < N2, the first preset adjustment coefficient X1 is selected to adjust the spring force of the one-way valve spring, and the adjusted spring force of the one-way valve spring is ΔW * X1;

[0118] When N2 ≤ ΔN < N3, the second preset adjustment coefficient X2 is selected to adjust the spring force of the one-way valve spring, and the adjusted spring force of the one-way valve spring is ΔW * X2;

[0119] When N3 ≤ ΔN < N4, the third preset adjustment coefficient X3 is selected to adjust the spring force of the one-way valve spring, and the adjusted spring force of the one-way valve spring is ΔW * X3;

[0120] When N4 ≤ ΔN, the fourth preset adjustment coefficient X4 is selected to adjust the spring force of the one-way valve spring, and the adjusted spring force of the one-way valve spring is ΔW * X4.

[0121] It can be understood that in the embodiment of the present invention, by obtaining the rotational speed of the drive motor 221 to adjust the spring force of the spring in the one-way valve, the problem that the one-way valve flap cannot be pushed open due to less ash material or the one-way valve flap cannot be closed due to more ash material is avoided.

[0122] Specifically, the processing module 400 is further configured to obtain the dust concentration information in the powder storage bin, obtain the real-time dust concentration ΔJ in the dust concentration information in the powder storage bin, and the processing module 400 is further configured to obtain the current diversion speed ΔK in the dust removal device 4, and adjust the diversion speed ΔK according to the real-time dust concentration ΔJ.

[0123] Specifically, the processing module 400 is further configured to set a first preset dust concentration J1, a second preset dust concentration J2, a third preset dust concentration J3, and a fourth preset dust concentration J4; the processing module 400 is further configured to set a first preset adjustment coefficient L1, a second preset adjustment coefficient L2, a third preset adjustment coefficient L3, and a fourth preset adjustment coefficient L4, and 0 < L1 < L2 < L3 < L4 < 1;

[0124] When ΔJ < J1, the diversion speed ΔK is not adjusted;

[0125] When J1 ≤ △J < J2, the first preset adjustment coefficient L1 is selected to adjust the diversion speed, and the adjusted diversion speed is △K * L1;

[0126] When J2 ≤ △J < J3, the second preset adjustment coefficient L2 is selected to adjust the diversion speed, and the adjusted diversion speed is △K * L2;

[0127] When J3 ≤ △J < J4, the third preset adjustment coefficient L3 is selected to adjust the diversion speed, and the adjusted diversion speed is △K * L3;

[0128] When J4 ≤ △J, the fourth preset adjustment coefficient L4 is selected to adjust the diversion speed, and the adjusted diversion speed is △K * L4.

[0129] It can be understood that in the embodiment of the present invention, by obtaining the dust concentration in the storage bin 31 to adjust the diversion speed of the dust removal device 4, it is avoided that the dust in the storage bin 31 cannot be diverted cleanly due to too small diversion speed, or ash material is sucked due to too large diversion speed.

[0130] The working process of the present invention is as follows: The feeding mechanism is arranged at the bottom of the ash silo 1. The ash material is pushed open by the stirring paddle 222, and the valve flap of the one-way valve transports the ash material into the storage bin 31. After the transportation is completed, the valve flap is reset by the spring to seal the storage bin 31. Then, after the ash material is discharged by the bulk module 32, the subsequent dust suction and diversion work is carried out, eliminating the traditional electric air lock feeder, thereby reducing the floor space occupied by the dry ash discharge system of the ash silo 1 in the traditional way, and at the same time reducing the later maintenance cost.

[0131] In summary, the embodiment of the present invention provides a dust prevention and control device for the dry ash discharge system of the ash silo 1, which adjusts the speed of the stirring paddle 222 by obtaining the real-time volume of the ash material in the discharge funnel 21 and the real-time volume of the ash material in the storage bin 31, avoiding long-term high-intensity operation, thereby extending the maintenance cycle and further reducing the maintenance cost.

[0132] Those skilled in the art should understand that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0133] This application is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to embodiments of the present application. It should be understood that each flow and / or block in the flowchart and / or block diagram, and the combination of flows and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices generate means for implementing the functions specified in one or more flows Figure 1 one or more flows and / or blocks Figure 1 or means for implementing the functions specified in one or more blocks

[0134] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the computer-readable memory generate a manufactured article including instruction means that implement the functions specified in one or more flows Figure 1 one or more flows and / or blocks Figure 1 or means for implementing the functions specified in one or more blocks

[0135] These computer program instructions can also be loaded onto a computer or other programmable data processing device, such that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process, and thus the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more flows Figure 1 one or more flows and / or blocks Figure 1 or means for implementing the functions specified in one or more blocks

[0136] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications or equivalent replacements can still be made to the specific embodiments of the present invention, and any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention should be covered by the protection scope of the claims of the present invention.

Claims

1. A dust prevention and control device for the dry ash discharge system of a dry ash silo, characterized in that, Including: A feeding mechanism, which is arranged at the bottom of the ash silo, and the feeding mechanism is used to transport the ash material discharged from the ash silo; A bulk loading mechanism, which is connected to the feeding mechanism, and the bulk loading mechanism is used to discharge the ash material transported by the feeding mechanism; A control device, which is electrically connected to the feeding mechanism and the bulk loading mechanism, and the control device is used to control the feeding mechanism and the bulk loading mechanism; Among them, the control device includes: An acquisition module, which is electrically connected to the first image detection module and the second image detection module. The acquisition module is used to acquire the volume information of the ash material in the discharge hopper, and the acquisition module is also used to acquire the volume information of the ash material in the storage bin; A processing module, which adjusts the rotational speed of the driving motor, the spring force of the one-way valve spring and the diversion speed of the dust removal device according to the volume information of the ash material in the discharge hopper and the volume information of the ash material in the storage bin; A control module, which is electrically connected to the driving motor, the one-way valve and the dust removal device, and the control module is used to control the driving motor, the one-way valve and the dust removal device; The processing module is also used to obtain the volume information of the ash material in the discharge hopper, obtain the real-time ash material volume △E in the discharge hopper in the volume information of the ash material in the discharge hopper. The processing module is also used to obtain the current rotational speed △Y of the driving motor, and the processing module is also used to adjust the current rotational speed △Y of the driving motor according to the real-time ash material volume △E in the discharge hopper; The processing module is also used to set the first preset ash material volume E1 in the discharge hopper, the second preset ash material volume E2 in the discharge hopper, the third preset ash material volume E3 in the discharge hopper and the fourth preset ash material volume E4 in the discharge hopper; The processing module is also used to set the first preset adjustment coefficient R1, the second preset adjustment coefficient R2, the third preset adjustment coefficient R3 and the fourth preset adjustment coefficient R4, and 0 < R1 < R2 < R3 < R4 < 1; When the processing module is also used to adjust the current rotational speed △Y of the driving motor according to the real-time ash material volume △E in the discharge hopper, it adjusts the current rotational speed △Y of the driving motor according to the relationship between the real-time ash material volume △E in the discharge hopper and the preset ash material volumes in each discharge hopper; When △E < E1, the current rotational speed △Y of the driving motor is not adjusted; When E1 ≤ △E < E2, the first preset adjustment coefficient R1 is selected to adjust the current rotational speed of the driving motor, and the adjusted rotational speed of the driving motor is △Y * R1; When E2 ≤ △E < E3, the second preset adjustment coefficient R2 is selected to adjust the current rotational speed of the driving motor, and the adjusted rotational speed of the driving motor is △Y * R2; When E3 ≤ △E < E4, the third preset adjustment coefficient R3 is selected to adjust the current rotational speed of the driving motor, and the adjusted rotational speed of the driving motor is △Y * R3; When E4 ≤ △E, the fourth preset adjustment coefficient R4 is selected to adjust the current rotational speed of the driving motor, and the adjusted rotational speed of the driving motor is △Y * R4.

2. The dust prevention and control equipment for the dry ash discharge system of the ash silo according to claim 1, characterized in that, The feeding mechanism includes: A discharge hopper, which is connected to the discharge port of the ash silo, and the discharge hopper is used to collect the ash material discharged from the ash silo; A first image detection module, which is arranged at the bottom end of the ash silo, and the first image detection module is connected to the outer wall of the ash silo. The first image detection module is used to obtain the internal image of the discharge hopper; The feeding module is connected to the discharging hopper, and the feeding module is used to transport the ash material to the bulk loading mechanism.

3. The dust prevention and control equipment for the dry ash discharge system of the ash silo according to claim 2, characterized in that, The feeding module includes: A box body, which is connected to the discharging hopper, and a first cavity is arranged inside the box body; A one-way valve, which is arranged on one side wall of the box body, and the one-way valve is provided with a valve flap and a spring; A driving motor, which is arranged at the other end of the box body; A stirring paddle, which is arranged inside the box body, and the other end of the stirring paddle passes through one end of the box body and is connected to the driving motor.

4. The dust prevention and control equipment for the dry ash discharge system of the ash silo according to claim 3, characterized in that, The bulk loading mechanism includes: A storage bin, which is connected to one end of the one-way valve on the box body, and a control valve is arranged at the bottom of the storage bin. The storage bin is used to store the ash material transported by the feeding module; A second image detection module, which is arranged on the inner top surface of the storage bin. The second image detection module is used to detect the dust concentration in the storage bin; A bulk loader, which is connected to the bottom of the storage bin. The bulk loader is used to discharge the ash material stored in the storage bin.

5. The dust prevention and control equipment for the dry ash discharge system of the ash silo according to claim 4, characterized in that, The storage bin further includes: A dust removal device, one end of which is connected to one side of the storage bin, and the other end of the dust removal device is connected to the discharging hopper. The dust removal device is used to divert the dust in the storage bin.

6. The dust prevention and control equipment for the dry ash discharge system of the ash silo according to claim 1, characterized in that, The processing module is further used to adjust the current driving motor speed by selecting the i-th preset adjustment coefficient Ri, and the adjusted driving motor speed is △Y*Ri, i = 1, 2, 3, 4. The processing module is further used to obtain the volume information of the ash material in the storage bin The real-time ash material volume △T in the storage bin, and correct the adjusted driving motor speed according to the real-time ash material volume △T in the storage bin; The processing module is further used to set the first preset ash material volume T1 in the storage bin, the second preset ash material volume T2 in the storage bin, the third preset ash material volume T3 in the storage bin, and the fourth preset ash material volume T4 in the storage bin; the processing module is further used to set the first preset correction coefficient P1, the second preset correction coefficient P2, the third preset correction coefficient P3, and the fourth preset correction coefficient P4; When the processing module corrects the adjusted motor speed △Y*Ri according to the real-time ash material volume △T in the storage bin, the processing module is further used to correct the adjusted driving motor speed according to the relationship between the real-time ash material volume △T in the storage bin and the preset ash material volumes in each storage bin; When △T < T1, the adjusted motor speed is not corrected; When T1 ≤ △T < T2, the first preset correction coefficient P1 is selected to correct the adjusted driving motor speed, and the corrected driving motor speed is △Y*Ri*P1; When T2 ≤ △T < T3, the second preset correction coefficient P2 is selected to correct the adjusted driving motor speed, and the corrected driving motor speed is △Y*Ri*P2; When T3 ≤ △T < T4, the third preset correction coefficient P3 is selected to correct the adjusted driving motor speed, and the corrected driving motor speed is △Y*Ri*P3; When T4 ≤ ΔT, select the fourth preset correction coefficient P4 to correct the adjusted driving motor speed, and the corrected driving motor speed is ΔY * Ri * P4.

7. The dust prevention and control equipment for the dry ash discharge system of the ash silo according to claim 6, characterized in that, The processing module is further configured to, when selecting the i-th preset correction coefficient Pi to correct the adjusted driving motor speed, the corrected driving motor speed is ΔN = ΔY * Ri * Pi, i = 1, 2, 3, 4. The processing module is further configured to obtain the spring force ΔW of the spring inside the current one-way valve, and adjust the spring force ΔW of the one-way valve spring according to the corrected driving motor speed ΔN; The processing module is further configured to set the first preset corrected driving motor speed as N1, the second preset corrected driving motor speed as N2, the third preset corrected driving motor speed as N3, and the fourth preset corrected driving motor speed as N4; The processing module is further configured to set the first preset adjustment coefficient X1, the second preset adjustment coefficient X2, the third preset adjustment coefficient X3, and the fourth preset adjustment coefficient X4, and 0 < X1 < X2 < X3 < X4 < 1; When the processing module adjusts the spring force ΔW of the one-way valve spring according to the corrected driving motor speed ΔN, the processing module is further configured to adjust the spring force ΔW of the one-way valve spring according to the relationship between the corrected driving motor speed ΔN and each preset corrected driving motor speed; When ΔN < N1, do not adjust the spring force of the one-way valve spring; When N1 ≤ ΔN < N2, select the first preset adjustment coefficient X1 to adjust the spring force of the one-way valve spring, and the adjusted spring force of the one-way valve spring is ΔW * X1; When N2 ≤ ΔN < N3, select the second preset adjustment coefficient X2 to adjust the spring force of the one-way valve spring, and the adjusted spring force of the one-way valve spring is ΔW * X2; When N3 ≤ ΔN < N4, select the third preset adjustment coefficient X3 to adjust the spring force of the one-way valve spring, and the adjusted spring force of the one-way valve spring is ΔW * X3; When N4 ≤ ΔN, select the fourth preset adjustment coefficient X4 to adjust the spring force of the one-way valve spring, and the adjusted spring force of the one-way valve spring is ΔW * X4.

8. The dust prevention and control equipment for the dry ash discharge system of the ash silo according to claim 1, characterized in that The processing module is further configured to obtain the dust concentration information in the storage bin, obtain the real-time dust concentration ΔJ in the dust concentration information in the storage bin, and the processing module is further configured to obtain the current diversion speed ΔK in the dust removal device, and adjust the diversion speed ΔK according to the real-time dust concentration ΔJ; The processing module is further configured to set the first preset dust concentration J1, the second preset dust concentration J2, the third preset dust concentration J3, and the fourth preset dust concentration J4; the processing module is further configured to set the first preset adjustment coefficient L1, the second preset adjustment coefficient L2, the third preset adjustment coefficient L3, and the fourth preset adjustment coefficient L4, and 0 < L1 < L2 < L3 < L4 < 1; When ΔJ < J1, do not adjust the diversion speed ΔK; When J1 ≤ △J < J2, then select the first preset adjustment coefficient L1 to adjust the diversion velocity, and the adjusted diversion velocity is △K * L1; When J2 ≤ △J < J3, then select the second preset adjustment coefficient L2 to adjust the diversion velocity, and the adjusted diversion velocity is △K * L2; When J3 ≤ △J < J4, then select the third preset adjustment coefficient L3 to adjust the diversion velocity, and the adjusted diversion velocity is △K * L3; When J4 ≤ △J, then select the fourth preset adjustment coefficient L4 to adjust the diversion velocity, and the adjusted diversion velocity is △K * L4.

Images