Waste incineration pretreatment temperature regulation and control method and system

Abstract

The invention relates to the technical field of garbage pretreatment, in particular to a garbage incineration pretreatment temperature regulation and control method and system, and the method comprises the following steps: obtaining garbage space information in a garbage bin, and carrying out the region division of the garbage bin to obtain a plurality of monitoring regions; one monitoring station and one spraying point are set in each monitoring area, unique identity numbers are set for the multiple monitoring stations, the monitoring stations and the spraying points in the same monitoring area are associated, and each monitoring station comprises multiple monitoring points; acquiring garbage temperature data of each monitoring area based on the monitoring station, and determining a garbage temperature difference value based on the garbage temperature data; sorting the garbage temperature difference values corresponding to the plurality of monitoring areas according to an ascending order to form a temperature difference line; the temperature of the garbage can be adjusted, and the stability of the garbage fermentation temperature is ensured, so that the garbage fermentation effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of garbage pretreatment, and in particular to a method and system for controlling temperature of garbage incineration pretreatment. Background Art

[0002] The garbage bin is the key to the operation and management of a waste incineration power plant. It is not only the storage area for the main fuel source of the incinerator, but also the key part of the odor control in the plant area. Waste incineration power generation projects in severe or cold areas generally have the problem of low temperature in the garbage bin in winter and insufficient garbage fermentation. Insufficient garbage fermentation will lead to a high moisture content in the garbage, which will reduce the calorific value of the garbage. Low calorific value means that less energy can be released per unit mass of garbage, which will affect the thermal energy utilization efficiency and power generation of the incinerator. Insufficient garbage fermentation may also lead to an increase in pollutant emissions during the incineration process. In order to ensure the operating stability of the incinerator and reduce the use of auxiliary fuels, it becomes increasingly important to maintain the garbage bin at a temperature suitable for garbage fermentation for a long time.

[0003] Existing garbage fermentation temperature control methods often rely on manual experience or fixed spraying strategies when in use, which are difficult to accurately control, affecting the control effect of the garbage bin temperature, thereby affecting the fermentation effect of the garbage in the garbage bin.

[0004] To this end, we propose a waste incineration pretreatment temperature control method and system to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a method and system for controlling temperature of waste incineration pretreatment to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a method and system for controlling temperature of waste incineration pretreatment, the method comprising the following steps:

[0007] Obtain garbage space information in the garbage bin, and divide the garbage bin into regions to obtain multiple monitoring areas; set a monitoring site and a spray point in each monitoring area, set unique identity numbers for multiple monitoring sites, and associate the monitoring sites and spray points in the same monitoring area, wherein each monitoring site contains multiple monitoring points;

[0008] Obtain garbage temperature data of each monitoring area based on the monitoring site, and determine the garbage temperature difference value based on the garbage temperature data; sort the garbage temperature difference values ​​corresponding to multiple monitoring areas in ascending order to form a temperature difference line; bind each monitoring site to the garbage temperature difference value of the corresponding monitoring area;

[0009] Obtain the garbage volume value of each monitoring area based on the monitoring site, and form a volume line based on the garbage volume values ​​corresponding to multiple monitoring areas; bind each monitoring site to the garbage volume value of the corresponding monitoring area;

[0010] The monitoring site is used as a correlation point, and a baseline perpendicular to the volume line is established based on the correlation point, wherein the baseline is parallel to the positioning line; the spraying volume of the corresponding monitoring area is determined based on the baseline, positioning line, temperature difference line and volume line;

[0011] The corresponding spraying points are determined based on the monitoring stations in the monitoring area, and the garbage in the monitoring area is sprayed according to the spraying amount through the spraying points to adjust the temperature of the garbage pretreatment.

[0012] Preferably, the step of obtaining garbage space information in the garbage bin and dividing the garbage bin into regions to obtain multiple monitoring areas includes:

[0013] Obtaining garbage space information in the garbage bin, wherein the garbage space information includes garbage structure information and garbage size information;

[0014] The positive projection of the garbage structure is used as the land occupation shape, and multiple radii of different sizes are set as the area radius based on the land occupation shape, wherein the sequence composed of the multiple area radii is an arithmetic progression;

[0015] Based on the garbage space information, the highest point of the garbage is obtained, and with the highest point as the center of the circle, lines are drawn in the shape of the occupied area based on the arrangement order of the area radius to obtain multiple monitoring areas.

[0016] Preferably, the step of acquiring garbage temperature data of each monitoring area based on the monitoring site and determining the garbage temperature difference value based on the garbage temperature data comprises:

[0017] The monitoring area is divided again into monitoring sub-areas, and monitoring points are arranged in each monitoring sub-area;

[0018] Based on the monitoring points, garbage temperature data of each monitoring sub-area is obtained, wherein the garbage temperature data includes an actual garbage temperature value and a required garbage temperature value, and multiple garbage temperature difference values ​​are obtained based on multiple actual garbage temperature values ​​and required garbage temperature values;

[0019] The average value of multiple garbage temperature difference values ​​is calculated to obtain the garbage temperature difference value of the monitoring area.

[0020] Preferably, the step of dividing the monitoring area again into monitoring sub-areas and arranging monitoring points in each monitoring sub-area comprises:

[0021] Get multiple monitoring areas and sort them outwards from the center point with the center of the circle as the center point;

[0022] Obtain the inner edge line and the outer edge line of the monitoring area, wherein the edge line close to the center of the circle is recorded as the inner edge line, and the edge line far from the center of the circle is recorded as the outer edge line;

[0023] Obtain the end point of the dividing line of the previous monitoring area adjacent to the target monitoring area to obtain the upper line endpoint, and obtain the outer edge line portion of the previous monitoring area between two adjacent upper line endpoints to obtain the outer edge line segment;

[0024] Obtain the midpoint of the line segment along the outer edge, use the midpoint of the line segment along the outer edge as the starting point of the dividing line of the target monitoring area, draw a vertical line from the starting point of the dividing line to the outer edge of the target monitoring area, and use the vertical line as the dividing line of the target monitoring area;

[0025] The target monitoring area is divided into multiple monitoring sub-areas based on multiple dividing lines, and the monitoring points are arranged at the center of the monitoring sub-areas.

[0026] Preferably, the step of forming a volume line based on the garbage volume values ​​corresponding to the plurality of monitoring areas comprises:

[0027] Construct a plane rectangular coordinate system, with the X-axis representing the volume of garbage and the Y-axis representing the spraying volume per unit volume;

[0028] Obtain the garbage volume values ​​corresponding to the multiple monitoring areas, map them on the X-axis in turn and calibrate them to obtain volume points, and connect the multiple volume points to form a volume line;

[0029] The Y axis is used as the positioning line corresponding to each volume point.

[0030] Preferably, the step of establishing a reference line perpendicular to the volume line based on the associated points comprises:

[0031] Determine the target monitoring site, and obtain the garbage volume value in the corresponding monitoring area based on the target monitoring site;

[0032] Map the garbage volume value onto the volume line in the plane rectangular coordinate system to obtain the target volume point corresponding to the target garbage volume value;

[0033] Draw a vertical line perpendicular to the volume line along the target volume point to obtain the reference line.

[0034] Preferably, the step of determining the spraying amount of the corresponding monitoring area based on the reference line, the positioning line, the temperature difference line and the volume line includes:

[0035] Obtain the temperature difference value in the monitoring area corresponding to the target monitoring station to obtain the target temperature difference value, and determine the distance between the temperature difference line and the volume line based on the target temperature difference value as the spraying volume per unit volume;

[0036] Draw the temperature difference line in a plane rectangular coordinate system, obtain the coordinate point corresponding to the target temperature difference value in the plane rectangular coordinate system to obtain the temperature difference value point, and place the temperature difference value point on the reference line;

[0037] Obtain the intersection point of the temperature difference line and the positioning line to obtain the first intersection point;

[0038] The volume points, the temperature difference points, the first intersection points, and the origin of the plane rectangular coordinate system are connected in pairs in sequence, and the area obtained after the connection is used as the spray volume corresponding to the monitoring area.

[0039] A waste incineration pretreatment temperature control system, applied to any one of the waste incineration pretreatment temperature control methods described above, comprising:

[0040] The area division module is used to obtain garbage space information in the garbage bin and divide the garbage bin into regions to obtain multiple monitoring areas; a monitoring site and a spray point are set in each monitoring area, unique identity numbers are set for multiple monitoring sites, and monitoring sites and spray points in the same monitoring area are associated, wherein each monitoring site contains multiple monitoring points;

[0041] The first processing module is used to obtain garbage temperature data of each monitoring area based on the monitoring site, determine the garbage temperature difference value based on the garbage temperature data; sort the garbage temperature difference values ​​corresponding to multiple monitoring areas in ascending order to form a temperature difference line; bind each monitoring site to the garbage temperature difference value of the corresponding monitoring area;

[0042] The second processing module is used to obtain the garbage volume value of each monitoring area based on the monitoring site, form a volume line based on the garbage volume values ​​corresponding to the multiple monitoring areas, and bind each monitoring site to the garbage volume value of the corresponding monitoring area;

[0043] A comprehensive processing module is used to use the monitoring site as a correlation point, establish a baseline perpendicular to the volume line based on the correlation point, wherein the baseline is parallel to the positioning line; determine the spraying volume of the corresponding monitoring area based on the baseline, the positioning line, the temperature difference line and the volume line;

[0044] The control module is used to determine the corresponding spraying points based on the monitoring stations in the monitoring area, spray the garbage in the monitoring area according to the spraying amount through the spraying points, and adjust the temperature of garbage pretreatment.

[0045] Compared with the prior art, the present invention has the following beneficial effects:

[0046] By obtaining garbage space information, multiple monitoring stations are set on the garbage, and the current temperature in the garbage bin is obtained based on the monitoring stations. The temperature difference is calculated based on the current temperature and the required temperature, and the temperature difference is arranged in order from small to large to form a temperature difference line. The volume of the garbage in the garbage bin is obtained based on the monitoring points, and the volume line is formed according to the volume size. Each volume point corresponds to a spray volume, and a longitudinal baseline is set. The longitudinal baseline is perpendicular to the temperature difference line and the volume line, and the temperature difference line and the volume line are parallel. The distance between the temperature difference line and the volume line is used as the spray volume per unit volume. The temperature difference point on the temperature difference line corresponds to the actual temperature difference in the current garbage bin, and the volume point on the volume line corresponds to the actual temperature difference in the current garbage bin. Corresponding to the volume in the current garbage bin, with the baseline as the criterion, the temperature difference line and the volume line are adjusted to the temperature difference point corresponding to the actual temperature difference and the volume point corresponding to the actual volume, and the corresponding spraying amount is determined according to the volume point to spray the garbage in the garbage bin, thereby regulating the fermentation temperature of the garbage. By real-time monitoring of the temperature and volume information in the garbage bin, precise spraying control is achieved by combining the temperature difference and volume line, and a spray-type garbage bin heating system is designed. The leachate generated by the garbage itself and the waste heat (steam) water in the plant are used to heat and spray back to the garbage bin to increase the temperature of the garbage, ensure the stability of the garbage fermentation temperature, and thus improve the fermentation effect of the garbage. The spraying strategy can be automatically adjusted to reduce manual intervention and improve fermentation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0048] Figure 1 It is a schematic diagram of the method flow of the present invention;

[0049] Figure 2 It is a system structure block diagram of the present invention. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] Example

[0052] See also Figure 1 to Figure 2The present invention provides a method and system technical solution for controlling the temperature of waste incineration pretreatment: A method for controlling the temperature of waste incineration pretreatment, comprising the following steps:

[0053] S1: Obtain garbage space information in the garbage bin, and divide the garbage bin into regions to obtain multiple monitoring areas; set a monitoring site and a spray point in each monitoring area, set unique identity numbers for multiple monitoring sites, and associate the monitoring sites and spray points in the same monitoring area, wherein each monitoring site contains multiple monitoring points;

[0054] Specifically, the leachate generated by the garbage itself and the waste heat (steam) water in the plant are used to heat and then spray back to the garbage bin to increase the temperature of the garbage. The leachate generated by the garbage is collected and treated, and the treated leachate is sprayed into the garbage through the spray point, which can not only recycle the water, but also take away part of the heat through the evaporation of water, thereby indirectly heating the garbage. The nozzle can be used as the spray point;

[0055] The steps of obtaining garbage space information in the garbage bin and dividing the garbage bin into regions to obtain multiple monitoring regions include:

[0056] Obtaining garbage space information in the garbage bin, wherein the garbage space information includes garbage structure information and garbage size information;

[0057] The positive projection of the garbage structure is used as the land occupation shape, and multiple radii of different sizes are set as the area radius based on the land occupation shape, wherein the sequence composed of the multiple area radii is an arithmetic progression;

[0058] Based on the garbage space information, the highest point of the garbage is obtained, and with the highest point as the center of the circle, multiple monitoring areas are obtained by drawing lines on the occupied area in the order of the area radius;

[0059] Specifically, the structure and size information of the garbage is obtained, and the shape of the garbage projection is used as the land area. The highest point of the garbage is obtained according to the structure information and size information. The highest point is used as the center of the circle to set the radius of the monitoring area. Multiple monitoring areas correspond to multiple radii, and the radii are larger than each other. The radii are sorted in order from small to large, and the garbage is divided from the inside to the outside into a circle and multiple circular rings or multiple special-shaped areas. Special-shaped areas refer to areas that do not form a circle but belong to the corresponding circle. The garbage is divided into areas layer by layer, so as to try to ensure that the unit spraying volume in each monitoring area is the same, reduce the regulation of the spraying point, and improve the spraying efficiency;

[0060] S2: Based on the monitoring site, garbage temperature data of each monitoring area is obtained, and the garbage temperature difference value is determined based on the garbage temperature data, wherein the garbage temperature data includes the actual garbage temperature value and the required garbage temperature value; the garbage temperature difference values ​​corresponding to the multiple monitoring areas are sorted in ascending order to form a temperature difference line; each monitoring site is bound to the garbage temperature difference value of the corresponding monitoring area;

[0061] It should be noted that the garbage temperature difference is determined based on the garbage temperature data, wherein the garbage temperature data includes the actual garbage temperature value and the garbage required temperature value. The garbage temperature difference can be obtained by subtracting the garbage required temperature value from the actual garbage temperature value. The garbage required temperature value can change according to the change of seasons. When the season is winter and the weather is relatively cold, the actual garbage temperature value will be lower, resulting in a larger garbage temperature difference between it and the garbage required temperature value.

[0062] The steps of obtaining garbage temperature data of each monitoring area based on the monitoring site and determining the garbage temperature difference value based on the garbage temperature data include:

[0063] The monitoring area is divided again into monitoring sub-areas, and monitoring points are arranged in each monitoring sub-area;

[0064] Based on the monitoring points, the actual temperature value of garbage in each monitoring sub-area is obtained, and based on multiple actual temperature values ​​of garbage and required temperature values ​​of garbage, multiple temperature difference values ​​of garbage are obtained;

[0065] Calculate the average value of multiple garbage temperature difference values ​​to obtain the garbage temperature difference value of the monitoring area;

[0066] Specifically, the monitoring area is divided again to obtain monitoring sub-areas, the actual temperature value of each monitoring sub-area is obtained, the temperature difference between the actual temperature value and the required temperature value is calculated respectively, and the average temperature difference value is calculated comprehensively. By performing the regional division again, the accuracy of the obtained temperature difference value can be improved, thereby better reflecting the temperature situation of the corresponding monitoring area;

[0067] The monitoring area is divided again into monitoring sub-areas, and the steps of arranging monitoring points in each monitoring sub-area include:

[0068] Get multiple monitoring areas and sort them outwards from the center point with the center of the circle as the center point;

[0069] Obtain the inner edge line and the outer edge line of the monitoring area, wherein the edge line close to the center of the circle is recorded as the inner edge line, and the edge line far from the center of the circle is recorded as the outer edge line;

[0070] Obtain the end point of the dividing line of the previous monitoring area adjacent to the target monitoring area to obtain the upper line endpoint, and obtain the outer edge line portion of the previous monitoring area between two adjacent upper line endpoints to obtain the outer edge line segment;

[0071] Obtain the midpoint of the line segment along the outer edge, use the midpoint of the line segment along the outer edge as the starting point of the dividing line of the target monitoring area, draw a vertical line from the starting point of the dividing line to the outer edge of the target monitoring area, and use the vertical line as the dividing line of the target monitoring area;

[0072] Divide the target monitoring area into multiple monitoring sub-areas based on multiple dividing lines, and arrange the monitoring points at the central positions of the monitoring sub-areas;

[0073] It should be noted that the outer edge line of the previous monitoring area is also the inner edge line of the target monitoring area. Similarly, the inner edge line of the next monitoring area is also the outer edge line of the target monitoring area.

[0074] Specifically, the monitoring areas are sorted from the inside to the outside, starting from the first monitoring area, taking the center of the circle as the point, and drawing a straight line to the edge to divide the first monitoring area into multiple monitoring sub-areas, obtaining the position of the dividing line of the previous monitoring sub-area, obtaining the middle position of the two adjacent dividing line positions, and taking the middle position as the starting point, drawing a line to the edge of the target monitoring area to divide the target monitoring area into multiple monitoring sub-areas. For example, the first monitoring area is divided into four parts, and the corresponding lines are numbered as line 1, line 2, line 3 and line 4, and the four lines divide the monitoring area equally, and each monitoring sub-area corresponds to a monitoring point. When the second monitoring area is divided, line 1 and line 2 are divided into two parts. The middle point between the two ends is used as the starting point of one of the lines when dividing the second monitoring area. The end is a point directly connected to the outer edge line of the second monitoring area vertically. The line between these two points is used as one of the lines when dividing the second monitoring area. The starting points of the other three lines are all the midpoints between the other two adjacent lines. The midpoint at this time refers to the end point on the part of the line segment of the outer edge line of the first monitoring area truncated by line 1 and line 2, and the outer edge line at this point is also the inner edge line of the second monitoring area. Using this method to divide the monitoring area again can improve the uniformity of the distribution of the monitoring points, thereby making the monitoring of the garbage temperature more accurate, thereby improving the regulation effect of the garbage pile temperature;

[0075] S3: Obtaining garbage volume values ​​of each monitoring area based on the monitoring sites, forming a volume line based on the garbage volume values ​​corresponding to the multiple monitoring areas; binding each monitoring site with the garbage volume value of the corresponding monitoring area;

[0076] The steps of forming a volume line based on the garbage volume values ​​corresponding to the plurality of monitoring areas include:

[0077] Construct a plane rectangular coordinate system, with the X-axis representing the volume of garbage and the Y-axis representing the spraying volume per unit volume;

[0078] Obtain the garbage volume values ​​corresponding to the multiple monitoring areas, map them on the X-axis in turn and calibrate them to obtain volume points, and connect the multiple volume points to form a volume line;

[0079] The Y axis is used as the positioning line corresponding to each volume point;

[0080] Specifically, a rectangular coordinate system is constructed, the temperature difference line and the volume line are drawn together in the coordinate system, and the baseline is used to associate the two, which can more intuitively display the required spraying volume of each monitoring area. It is only necessary to select the target temperature difference value point and the target volume point corresponding to the monitoring area from the coordinate system to obtain the corresponding spraying volume, thereby improving the accuracy of the regulation of the garbage fermentation temperature;

[0081] S4: Taking the monitoring site as the associated point, establishing a baseline perpendicular to the volume line based on the associated point, wherein the baseline is parallel to the positioning line; determining the spraying volume of the corresponding monitoring area based on the baseline, the positioning line, the temperature difference line and the volume line;

[0082] The steps to establish a reference line perpendicular to the volume line based on the associated point include:

[0083] Determine the target monitoring site, and obtain the garbage volume value in the corresponding monitoring area based on the target monitoring site;

[0084] Map the garbage volume value onto the volume line in the plane rectangular coordinate system to obtain the target volume point corresponding to the target garbage volume value;

[0085] Draw a vertical line perpendicular to the volume line along the target volume point to obtain the reference line;

[0086] Specifically, first determine the monitoring site, correspond the monitoring site to the garbage volume value on the volume line in the plane rectangular coordinate system, take the coordinate point corresponding to the garbage volume value as the volume point, draw a straight line perpendicular to the volume line along the volume point, and use the straight line as the baseline. The baseline is used to ensure that the temperature difference value and the volume value correspond to the same monitoring site, and serve as the correlation line between the two, thereby ensuring the accuracy of the temperature difference value and the volume value;

[0087] The steps of determining the spraying amount of the corresponding monitoring area based on the baseline, the positioning line, the temperature difference line and the volume line include:

[0088] Obtain the temperature difference value in the monitoring area corresponding to the target monitoring station to obtain the target temperature difference value, and determine the distance between the temperature difference line and the volume line based on the target temperature difference value as the spraying volume per unit volume;

[0089] Draw the temperature difference line in a plane rectangular coordinate system, obtain the coordinate point corresponding to the target temperature difference value in the plane rectangular coordinate system to obtain the temperature difference value point, and place the temperature difference value point on the reference line;

[0090] Obtain the intersection point of the temperature difference line and the positioning line to obtain the first intersection point;

[0091] The volume point, the temperature difference point, the first intersection point, and the origin of the plane rectangular coordinate system are connected in pairs in sequence, and the area obtained after the connection is used as the spray volume corresponding to the monitoring area;

[0092] It should be noted that the volume point, the temperature difference value point, the first intersection point, and the origin of the plane rectangular coordinate system are connected in pairs in sequence, which means that the four points are connected in sequence. The two-by-two connection here refers to the connection of two adjacent points, and does not include the mutual connection between all points, that is, the volume point, the temperature difference value point, the first intersection point, and the origin of the plane rectangular coordinate system are connected in sequence, and then connected back to the volume point, so as to form the corresponding regional area;

[0093] It should be noted that placing the temperature difference point on the baseline means finding the temperature difference point of the target temperature difference value on the temperature difference line, finding the volume point of the target volume value on the volume line, and taking the target monitoring station as the correlation point, placing the temperature difference point and volume point corresponding to the same monitoring station on the baseline together, and limiting the distance between the two points; that is, taking the intersection of the temperature difference line and the baseline as the temperature difference point corresponding to the target monitoring station, and taking the intersection of the volume line and the baseline as the volume point corresponding to the target monitoring station;

[0094] Specifically, the temperature difference and volume data of the garbage are collected through monitoring sites. A baseline is set, and temperature difference points and multiple volume points are set on the baseline. The data collected by the monitoring site is associated with the points on the baseline to determine the position of the temperature difference value and the volume value on the baseline. The spraying volume of the garbage per unit volume is determined based on the temperature difference value of the monitoring area, and the total spraying volume of the garbage is determined based on the volume of the garbage. The spraying range is determined based on the volume of garbage in the monitoring area. The spraying volume is automatically adjusted to ensure that the garbage is properly sprayed. According to the change in the volume of garbage, the spraying range is dynamically adjusted to ensure the spraying effect;

[0095] Determine the volume value of the corresponding area according to the monitoring site, find and calibrate the volume point where the volume value is mapped on the coordinate system, determine the distance between the temperature difference line and the volume line based on the temperature difference value, find the temperature difference value corresponding to the monitoring site from the temperature difference line, map it to the temperature difference point in the coordinate system and mark it, connect the temperature difference point, volume point, coordinate system origin, and the intersection of the temperature difference line and the Y axis, and use the obtained area as the spraying amount;

[0096] It should be noted that the height of the temperature difference line on the coordinate system is determined according to the temperature difference. For example, when the temperature difference is 2 degrees Celsius, the temperature difference line is placed at a height of 2 from the volume line. The temperature difference value can be directly used as the height of the temperature line from the volume line.

[0097] S5: Determine the corresponding spraying point based on the monitoring station in the monitoring area, and spray the garbage in the monitoring area according to the spraying amount through the spraying point to adjust the temperature of the garbage pretreatment;

[0098] Specifically, when spraying, first obtain the volume in each monitoring area, see the distribution of the garbage volume in the monitoring area, match the corresponding spraying volume according to the volume distribution, and then divide the spraying volume in proportion so that it is evenly distributed in the corresponding area, improve the spraying effect, and accurately adjust the garbage temperature;

[0099] A waste incineration pretreatment temperature control system, applied to any one of the waste incineration pretreatment temperature control methods described above, comprising:

[0100] The area division module is used to obtain garbage space information in the garbage bin and divide the garbage bin into regions to obtain multiple monitoring areas; a monitoring site and a spray point are set in each monitoring area, unique identity numbers are set for multiple monitoring sites, and monitoring sites and spray points in the same monitoring area are associated, wherein each monitoring site contains multiple monitoring points;

[0101] The first processing module is used to obtain garbage temperature data of each monitoring area based on the monitoring site, determine the garbage temperature difference value based on the garbage temperature data; sort the garbage temperature difference values ​​corresponding to multiple monitoring areas in ascending order to form a temperature difference line; bind each monitoring site to the garbage temperature difference value of the corresponding monitoring area;

[0102] The second processing module is used to obtain the garbage volume value of each monitoring area based on the monitoring site, form a volume line based on the garbage volume values ​​corresponding to the multiple monitoring areas, and bind each monitoring site to the garbage volume value of the corresponding monitoring area;

[0103] A comprehensive processing module is used to use the monitoring site as a correlation point, establish a baseline perpendicular to the volume line based on the correlation point, wherein the baseline is parallel to the positioning line; determine the spraying volume of the corresponding monitoring area based on the baseline, the positioning line, the temperature difference line and the volume line;

[0104] The control module is used to determine the corresponding spraying points based on the monitoring stations in the monitoring area, spray the garbage in the monitoring area according to the spraying amount through the spraying points, and adjust the temperature of garbage pretreatment.

[0105] The present invention obtains garbage space information, sets multiple monitoring stations on the garbage, obtains the current temperature in the garbage bin based on the monitoring stations, calculates the temperature difference based on the current temperature and the required temperature, arranges the temperature difference in order from small to large to form a temperature difference line, obtains the volume of the garbage in the garbage bin based on the monitoring points, arranges the volume lines according to the volume sizes, each volume point corresponds to a spraying amount, sets a longitudinal reference line, and the longitudinal reference line is perpendicular to the temperature difference line and the volume line, the temperature difference line and the volume line are parallel, the distance between the temperature difference line and the volume line is used as the spraying amount per unit volume, the temperature difference point on the temperature difference line corresponds to the actual temperature difference in the current garbage bin, and the volume point on the volume line corresponds to the actual temperature difference in the current garbage bin. The accumulation point corresponds to the volume in the current garbage bin. Taking the baseline as the criterion, the temperature difference line and the volume line are adjusted to the temperature difference point corresponding to the actual temperature difference and the volume point corresponding to the actual volume. The corresponding spraying amount is determined according to the volume point to spray the garbage in the garbage bin, thereby regulating the fermentation temperature of the garbage. By real-time monitoring of the temperature and volume information in the garbage bin, precise spraying control is achieved by combining the temperature difference and volume line. A spray-type garbage bin heating system is designed, which utilizes the leachate generated by the garbage itself and the waste heat (steam) water in the plant, and sprays it back to the garbage bin after heating to increase the temperature of the garbage, ensure the stability of the garbage fermentation temperature, and thus improve the fermentation effect of the garbage. The spraying strategy can be automatically adjusted to reduce manual intervention and improve fermentation efficiency.

[0106] In the garbage bin, garbage needs to be stored for a certain period of time to ferment. This process can increase the calorific value of the garbage entering the furnace, making it easier to ignite and burn. During the fermentation process, the garbage produces leachate, which not only increases the calorific value of the garbage, but also makes it easier to ignite and burn. The increase in temperature in the garbage bin is crucial to the stability of the boiler load. By heating the leachate produced in the garbage and spraying it back into the garbage bin, the temperature in the garbage bin and the garbage fermentation effect can be increased, ensuring the stability of the boiler load.

[0107] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0108] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for controlling temperature of waste incineration pretreatment, characterized in that: The following steps are involved: S1: Obtain garbage space information in the garbage bin and divide the garbage bin into regions to obtain multiple monitoring areas; A monitoring station and a spraying point are set in each monitoring area, unique identification numbers are set for multiple monitoring stations, and monitoring stations and spraying points in the same monitoring area are associated, wherein each monitoring station includes multiple monitoring points; S2: Based on the monitoring site, garbage temperature data of each monitoring area is obtained, and the garbage temperature difference value is determined based on the garbage temperature data; the garbage temperature difference values ​​corresponding to multiple monitoring areas are sorted in ascending order to form a temperature difference line; each monitoring site is bound to the garbage temperature difference value of the corresponding monitoring area; S3: Obtaining garbage volume values ​​of each monitoring area based on the monitoring sites, forming a volume line based on the garbage volume values ​​corresponding to the multiple monitoring areas; binding each monitoring site with the garbage volume value of the corresponding monitoring area; S4: Taking the monitoring site as the associated point, establishing a baseline perpendicular to the volume line based on the associated point, wherein the baseline is parallel to the positioning line; determining the spraying volume of the corresponding monitoring area based on the baseline, the positioning line, the temperature difference line and the volume line; S5: Determine corresponding spraying points based on the monitoring stations in the monitoring area, and spray the garbage in the monitoring area according to the spraying amount through the spraying points to adjust the temperature of garbage pretreatment.

2. A method for controlling temperature of waste incineration pretreatment according to claim 1, characterized in that: The steps of obtaining garbage space information in the garbage bin and dividing the garbage bin into regions to obtain multiple monitoring regions include: Obtaining garbage space information in the garbage bin, wherein the garbage space information includes garbage structure information and garbage size information; The positive projection of the garbage structure is used as the land occupation shape, and multiple radii of different sizes are set as the area radius based on the land occupation shape, wherein the sequence composed of the multiple area radii is an arithmetic progression; Based on the garbage space information, the highest point of the garbage is obtained, and with the highest point as the center of the circle, lines are drawn in the shape of the occupied area based on the arrangement order of the area radius to obtain multiple monitoring areas.

3. A method for controlling temperature of waste incineration pretreatment according to claim 1, characterized in that: The steps of obtaining garbage temperature data of each monitoring area based on the monitoring site and determining the garbage temperature difference value based on the garbage temperature data include: The monitoring area is divided again into monitoring sub-areas, and monitoring points are arranged in each monitoring sub-area; Based on the monitoring points, garbage temperature data of each monitoring sub-area is obtained, wherein the garbage temperature data includes an actual garbage temperature value and a required garbage temperature value, and multiple garbage temperature difference values ​​are obtained based on multiple actual garbage temperature values ​​and required garbage temperature values; The average value of multiple garbage temperature difference values ​​is calculated to obtain the garbage temperature difference value of the monitoring area.

4. A method for controlling temperature of waste incineration pretreatment according to claim 3, characterized in that: The step of dividing the monitoring area again into monitoring sub-areas and setting monitoring points in each monitoring sub-area comprises: Get multiple monitoring areas and sort them outwards from the center point with the center point as the center point; Obtain the inner edge line and the outer edge line of the monitoring area, wherein the edge line close to the center of the circle is recorded as the inner edge line, and the edge line far from the center of the circle is recorded as the outer edge line; Obtain the end point of the dividing line of the previous monitoring area adjacent to the target monitoring area to obtain the upper line endpoint, and obtain the outer edge line portion of the previous monitoring area between two adjacent upper line endpoints to obtain the outer edge line segment; Obtain the midpoint of the line segment along the outer edge, use the midpoint of the line segment along the outer edge as the starting point of the dividing line of the target monitoring area, draw a vertical line from the starting point of the dividing line to the outer edge of the target monitoring area, and use the vertical line as the dividing line of the target monitoring area; The target monitoring area is divided into multiple monitoring sub-areas based on multiple dividing lines, and the monitoring points are arranged at the center of the monitoring sub-areas.

5. A method for controlling temperature of waste incineration pretreatment according to claim 1, characterized in that: The step of forming a volume line based on the garbage volume values ​​corresponding to the plurality of monitoring areas comprises: Construct a plane rectangular coordinate system, with the X-axis representing the volume of garbage and the Y-axis representing the spraying volume per unit volume; Obtain the garbage volume values ​​corresponding to the multiple monitoring areas, map them on the X-axis in turn and calibrate them to obtain volume points, and connect the multiple volume points to form a volume line; The Y axis is used as the positioning line corresponding to each volume point.

6. A method for controlling temperature of waste incineration pretreatment according to claim 5, characterized in that: The steps to establish a reference line perpendicular to the volume line based on the associated point include: Determine the target monitoring site, and obtain the garbage volume value in the corresponding monitoring area based on the target monitoring site; Map the garbage volume value onto the volume line in the plane rectangular coordinate system to obtain the target volume point corresponding to the target garbage volume value; Draw a vertical line perpendicular to the volume line along the target volume point to obtain the reference line.

7. A method for controlling temperature of waste incineration pretreatment according to claim 6, characterized in that: The steps of determining the spraying amount of the corresponding monitoring area based on the baseline, the positioning line, the temperature difference line and the volume line include: Obtain the temperature difference value in the monitoring area corresponding to the target monitoring station to obtain the target temperature difference value, and determine the distance between the temperature difference line and the volume line based on the target temperature difference value as the spraying volume per unit volume; Draw the temperature difference line in a plane rectangular coordinate system, obtain the coordinate point corresponding to the target temperature difference value in the plane rectangular coordinate system to obtain the temperature difference value point, and place the temperature difference value point on the reference line; Obtain the intersection point of the temperature difference line and the positioning line to obtain the first intersection point; The volume points, the temperature difference points, the first intersection points, and the origin of the plane rectangular coordinate system are connected in pairs in sequence, and the area obtained after the connection is used as the spray volume corresponding to the monitoring area.

8. A waste incineration pretreatment temperature control system, applied to the waste incineration pretreatment temperature control method according to any one of claims 1 to 7, characterized in that: include: The area division module is used to obtain the garbage space information in the garbage bin and divide the garbage bin into regions to obtain multiple monitoring areas; A monitoring station and a spraying point are set in each monitoring area, unique identification numbers are set for multiple monitoring stations, and monitoring stations and spraying points in the same monitoring area are associated, wherein each monitoring station includes multiple monitoring points; The first processing module is used to obtain garbage temperature data of each monitoring area based on the monitoring site, determine the garbage temperature difference value based on the garbage temperature data; sort the garbage temperature difference values ​​corresponding to multiple monitoring areas in ascending order to form a temperature difference line; bind each monitoring site to the garbage temperature difference value of the corresponding monitoring area; The second processing module is used to obtain the garbage volume value of each monitoring area based on the monitoring site, form a volume line based on the garbage volume values ​​corresponding to the multiple monitoring areas, and bind each monitoring site to the garbage volume value of the corresponding monitoring area; A comprehensive processing module is used to use the monitoring site as a correlation point, establish a baseline perpendicular to the volume line based on the correlation point, wherein the baseline is parallel to the positioning line; determine the spraying volume of the corresponding monitoring area based on the baseline, the positioning line, the temperature difference line and the volume line; The control module is used to determine the corresponding spraying points based on the monitoring stations in the monitoring area, spray the garbage in the monitoring area according to the spraying amount through the spraying points, and adjust the temperature of garbage pretreatment.

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