Sludge blending combustion preheating device with real-time temperature control alarm function
By introducing a two-way high-temperature gas preheating and insulation layer design into the sludge preheating device, combined with a stirring component and a temperature probe, the problems of uneven sludge preheating and large temperature difference are solved, achieving precise temperature control and safe preheating.
Patent Information
- Application Number
- CN202423184494.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Existing sludge preheating devices suffer from problems such as small preheating contact area and limited space, resulting in uneven preheating, large temperature differences, and inaccurate temperature measurement.
The system employs a first preheating mechanism and a second preheating mechanism, combined with a mixing component and a auger feeding component. High-temperature gas is used to preheat the sludge through bidirectional flow, and an insulation layer is formed inside the outer shell. Temperature is monitored in real time using a temperature probe, and an alarm device is set up to prevent overheating.
It achieves uniform preheating of sludge, reduces temperature difference, improves preheating accuracy, and prevents caking through real-time temperature control alarm, thereby improving preheating efficiency and safety.
Smart Images
Figure CN223595938U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a sludge blending combustion technical field, concretely is a real -time temperature control alarm's sludge blending combustion preheating device. BACKGROUND
[0002] The boiler of thermal power plant is mainly used for generating electricity, in order to reduce the waste of power plant waste heat, usually utilizes power plant waste heat steam to dry the difficult dewatering sludge into dry mud, then mixes and sends the dry mud with coal of thermal power plant into the boiler and burns to generate electricity, thereby can utilize waste heat and save coal at the same time. The sludge can be preheated by the high-temperature flue gas generated by the combustion of the blending combustion furnace before burning in the blending combustion furnace.
[0003] At present, the sludge preheating is heated by the heat transfer of the heat carried by the high-temperature flue gas generated by combustion, the high-temperature flue gas unidirectional flow contacts the sludge, only can unilateral preheat the sludge in the feeding process, the preheating contact area, space is small, the preheating time is short, and the sludge preheating in the feeding cylinder is uneven, the temperature difference is big, thereby leading to the inaccuracy of preheating temperature measurement. UTILITY MODEL CONTENT
[0004] The utility model discloses a real -time temperature control alarm's sludge blending combustion preheating device to solve the problem in the background art.
[0005] In order to achieve the above object, the utility model provides the following technical scheme:
[0006] A real -time temperature control alarm's sludge blending combustion preheating device, including first preheating mechanism and second preheating mechanism, the second preheating mechanism includes the shell and the Jiaolong feeding assembly of setting in the shell interior, the shell is opened with second feed inlet and second discharge outlet, the Jiaolong feeding assembly includes the drive shaft of rotation installation on the shell and installs the Jiaolong blade on the drive shaft, the both ends of drive shaft are all opened with passageway, and one end of drive shaft is also connected with second air inlet pipe, second air inlet pipe communicates with passageway, and the Jiaolong blade is hollow structure, and both ends of Jiaolong blade communicate through the connecting cylinder with the passageway of both ends of drive shaft, the other end of drive shaft stretches out the shell, and the protective cover is fixedly installed on the other end of drive shaft at the shell, the protective cover is connected with at least one exhaust pipe, the cavity is opened in the inner wall of shell, and the cavity communicates with exhaust pipe.
[0007] As the further scheme of the utility model: the shell interior is provided with a plurality of temperature measurement probes, a plurality of temperature measurement probes are equidistantly arranged, the outside of shell is also provided with a controller, the controller includes a processor and an alarm device, the processor is connected with temperature measurement probe and alarm device.
[0008] As a further scheme of the utility model: the second exhaust port is arranged on the shell, and the second exhaust port is communicated with the cavity.
[0009] As a further scheme of the utility model: the first preheating mechanism is installed at the second feeding port of the shell, and the first preheating mechanism comprises a preheating cylinder, a stirring assembly arranged in the preheating cylinder and a jetting assembly.
[0010] As a further scheme of the utility model: the jetting assembly comprises a support fixedly installed on the preheating cylinder, a first air inlet pipe fixedly installed on the support and a spray head installed in the preheating cylinder, and the first air inlet pipe is communicated with the spray head through a connecting pipe.
[0011] As a further scheme of the utility model: a first feeding port is formed in the preheating cylinder, a first discharging port is formed in the preheating cylinder, the first discharging port is communicated with the second feeding port, a rotating discharging disc and a fixed discharging disc are arranged in the first discharging port, the rotating discharging disc is rotatably installed at the first discharging port and is fixedly connected with the rotating shaft, and the fixed discharging disc is fixedly installed at the first discharging port.
[0012] As a further scheme of the utility model: the rotating discharging disc and the fixed discharging disc are of the same structure, and the rotating discharging disc comprises a disc body and a plurality of discharging holes formed in the disc body.
[0013] Compared with the prior art, the utility model has the advantages that the first preheating mechanism and the second preheating mechanism are arranged to preheat the sludge, the first preheating mechanism stirs the sludge during the preheating process, so that the sludge is dispersed, and the sludge is prevented from caking; the second preheating mechanism can form a heat preservation layer in the shell during the preheating process, the heat preservation layer preserves the temperature of the sludge in the shell, prevents the temperature of the sludge from rapidly decreasing, and the second preheating mechanism is further provided with a plurality of temperature measuring probes, the temperature measuring probes collect temperature information of a plurality of points in the shell, and when the temperature information is greater than a preset alarm threshold, an alarm is given, so that the temperature of the sludge is prevented from rapidly increasing, and the sludge is prevented from caking in the preheating device. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a structural schematic view of the sludge blending and burning preheating device for real-time temperature control alarm.
[0015] Figure 2 It is a structural schematic view of the second preheating mechanism in the sludge blending and burning preheating device for real-time temperature control alarm.
[0016] Figure 3The structure diagram of the first preheating mechanism in the sludge blending and preheating device with real-time temperature control alarm.
[0017] Figure 4 The structure diagram of the cylinder cover in the sludge blending and preheating device with real-time temperature control alarm.
[0018] Figure 5 The structure diagram of the rotating discharging disc in the sludge blending and preheating device with real-time temperature control alarm.
[0019] In the figure: 10-first preheating mechanism, 11-preheating cylinder, 111-first feeding port, 112-first discharging port, 113-cylinder cover, 114-first exhaust port, 12-rotating shaft, 13-stirring blade, 14-sprayer, 15-first air inlet pipe, 16-connection pipe, 17-rotating motor, 18-rotating discharging disc, 181-disc body, 182-discharging hole, 19-fixed discharging disc, 20-second preheating mechanism, 21-outer shell, 211-second discharging port, 212-second feeding port, 213-cavity, 214-second exhaust port, 22-driving motor, 221-first gear, 222-second gear, 23-driving shaft, 231-second air inlet pipe, 232-channel, 24-fish blade, 241-connection cylinder, 25-protective cover, 26-exhaust pipe, 27-temperature measuring probe, 28-controller. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0021] Please refer to Figures 1-5In this embodiment of the present invention, a sludge co-firing preheating device with real-time temperature control alarm includes a first preheating mechanism 10 and a second preheating mechanism 20. The second preheating mechanism 20 includes a housing 21 and a auger feeding assembly disposed inside the housing 21. The housing 21 has a second inlet 212 for sludge to enter and a second outlet 211 for sludge to exit. The auger feeding assembly includes a drive shaft 23 rotatably mounted on the housing 21 and auger blades 24 mounted on the drive shaft 23. When the drive shaft 23 is rotating, it is driven into the housing 21 by the auger blades 24. The internal movement of sludge causes it to be discharged from the second outlet 211. Both ends of the drive shaft 23 have channels 232, and one end of the drive shaft 23 is connected to a second air inlet pipe 231, which communicates with the channels 232. The auger blade 24 is a hollow structure, and both ends of the auger blade 24 are connected to the channels 232 at both ends of the drive shaft 23 via connecting cylinders 241. The second air inlet pipe 231 is used to introduce high-temperature gas. After the high-temperature gas is introduced, it enters the interior of the auger blade 24 through the channel 232 at one end of the drive shaft 23 and finally exits through the channel 232 at the other end of the drive shaft 23. Figure 2 For example, the other end of the drive shaft 23 is located on the left side of the outer shell 21. During the flow of high-temperature gas inside the auger blades 24, the sludge inside the outer shell 21 is heated, causing the sludge to heat up. The other end of the drive shaft 23 extends out of the outer shell 21. A protective cover 25 is fixedly installed on the outer shell 21 at the other end of the drive shaft 23. The protective cover 25 is connected to at least one exhaust pipe 26. A cavity 213 is opened in the inner wall of the outer shell 21. The cavity 213 is connected to the exhaust pipe 26. The gas discharged from the channel 232 at the other end of the drive shaft 23 enters the cavity 213 through the exhaust pipe 26, thereby forming a heat insulation layer in the outer shell 21. The heat insulation layer is used to keep the sludge inside the outer shell 21 warm and prevent the sludge temperature from dropping rapidly.
[0022] like Figure 1 As shown in this embodiment, a drive motor 22 is fixedly installed on the outer shell 21, a first gear 221 is fixedly installed on the output end of the drive motor 22, and a second gear 222 is fixedly installed on the drive shaft 23. The second gear 222 meshes with the first gear 221. When the drive motor 22 is working, it drives the second gear 222 to rotate through the first gear 221, thereby controlling the drive shaft 23 to rotate, so that the drive shaft 23 drives the auger blades 24 to rotate.
[0023] Furthermore, in this embodiment, a plurality of temperature probes 27 are disposed inside the outer casing 21, and the plurality of temperature probes 27 are equidistantly arranged. A controller 28 is also disposed outside the outer casing 21. The controller 28 includes a processor and an alarm device. The processor is connected to the temperature probes 27 and the alarm device, wherein:
[0024] a temperature measuring probe 27 for collecting temperature information of multiple points inside the shell 21;
[0025] a processor for receiving the temperature information and comparing the temperature information with a preset alarm threshold, and generating an alarm signal when the temperature information is greater than the preset alarm threshold;
[0026] an alarm device for obtaining alarm information and generating an alarm based on the alarm signal;
[0027] It should be noted that in the present embodiment, the processor can be a PLC controller, and the alarm device can be an audible and visual alarm. Both the processor and the alarm device can use existing technologies, and thus will not be described in detail in the present embodiment.
[0028] In the present embodiment, it should also be noted that the shell 21 is provided with a second exhaust port 214, which is in communication with the cavity 213. The second exhaust port 214 is used to exhaust the gas inside the cavity 213.
[0029] In the present embodiment, the first preheating mechanism 10 is installed at the second feeding port 212 of the shell 21. The first preheating mechanism 10 includes a preheating cylinder 11, a stirring assembly arranged inside the preheating cylinder 11, and a gas injection assembly. The stirring assembly includes a rotating shaft 12 rotatably installed inside the preheating cylinder 11 and a plurality of stirring blades 13 fixedly installed on the rotating shaft 12. When the rotating shaft 12 is in a rotating state, the stirring blades 13 are driven to rotate, and the stirring blades 13 drive the sludge inside the preheating cylinder 11 to move, thereby dispersing the sludge and preventing the sludge from caking and entering the second preheating mechanism 20. The gas injection assembly includes a bracket fixedly installed on the preheating cylinder 11, a first gas inlet pipe 15 fixedly installed on the bracket, and a spray head 14 installed inside the preheating cylinder 11. The first gas inlet pipe 15 is in communication with the spray head 14 through a connecting pipe 16. The first gas inlet pipe 15 is used to introduce high-temperature gas. The high-temperature gas enters the spray head 14 through the connecting pipe 16 and is sprayed into the preheating cylinder 11 from the spray head 14, thereby preheating the sludge inside the preheating cylinder 11. It should be noted that in the present embodiment, the high-temperature gas introduced by the first gas inlet pipe 15 and the second gas inlet pipe 231 can be provided by a co-combustion furnace.
[0030] Further, in the embodiment of the present application, the first feeding port 111 is arranged on the preheating cylinder 11, the first discharging port 112 is arranged in the preheating cylinder 11, the first discharging port 112 is communicated with the second feeding port 212, the rotary discharging disc 18 and the fixed discharging disc 19 are arranged in the first discharging port 112, the rotary discharging disc 18 is rotatably arranged in the first discharging port 112 and is fixedly connected with the rotating shaft 12, and the fixed discharging disc 19 is fixedly arranged in the first discharging port 112; the rotary discharging disc 18 and the fixed discharging disc 19 are of the same structure, wherein the rotary discharging disc 18 comprises a disc body 181 and a plurality of discharging holes 182 arranged on the disc body 181; in the initial state, the discharging holes 182 of the rotary discharging disc 18 and the discharging holes 182 of the fixed discharging disc 19 are staggered; after the sludge is sent into the preheating cylinder 11 from the first feeding port 111, the rotating motor 17 arranged on the preheating cylinder 11 controls the rotating shaft 12 to rotate, so that the rotating shaft 12 drives the stirring blade 13 to rotate; in the rotating process of the rotating shaft 12, the discharging holes 182 of the rotary discharging disc 18 and the discharging holes 182 of the fixed discharging disc 19 are intermittently communicated, so that the sludge is intermittently sent from the first discharging port 112 into the second feeding port 212, the sludge has a certain stirring time and preheating time in the preheating cylinder 11, and the sludge is prevented from being rapidly sent into the second preheating mechanism 20, so as to provide sufficient heating time and feeding time for the second preheating mechanism 20.
[0031] Please refer to Figure 4 In the embodiment of the present application, the cylinder cover 113 is detachably arranged on the preheating cylinder 11, and the first exhaust port 114 is arranged on the cylinder cover 113; when the sludge is heated, the cylinder cover 113 is arranged on the preheating cylinder 11, and the first exhaust port 114 is used for exhausting the heating gas in the preheating cylinder 11 when the sludge is heated.
[0032] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.
[0033] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature described. The specification can include implicit combinations of explicitly mentioned features and / or explicit combinations of implicitely mentioned features. Each embodiment depends on the explicit combinations of features and / or the implicit combinations of features made specifically within that embodiment, and each such embodiment can be combined with every other such embodiment to create further embodiments.
Claims
1. A sludge mixed combustion preheating device with real-time temperature control alarm, characterized in that, The utility model provides a kind of preheating mechanism, including first preheating mechanism (10) and second preheating mechanism (20), the second preheating mechanism (20) includes shell (21) and setting inside the shell (21) Long Fei feeding assembly, second inlet (212) and second outlet (211) are opened in the shell (21), the Long Fei feeding assembly includes rotationally installed in the shell (21) drive shaft (23) and Long Fei blade (24) installed on the drive shaft (23), the both ends of the drive shaft (23) are opened with passageway (232), the one end of drive shaft (23) is also connected with second air inlet pipe (231), the second air inlet pipe (231) is communicated with the passageway (232), Long Fei blade (24) is hollow structure, and the both ends of Long Fei blade (24) are communicated with the passageway (232) of the both ends of drive shaft (23) by connecting cylinder (241), the other end of the drive shaft (23) is stretched out from shell (21), and protective cover (25) is fixedly installed on the other end of drive shaft (23) at shell (21), at least one exhaust pipe (26) is connected with the protective cover (25), and cavity (213) is opened in the inner wall of the shell (21), and the cavity (213) is communicated with the exhaust pipe (26).
2. The sludge incineration preheating device with real-time temperature control alarm according to claim 1, characterized in that, The inside of the shell (21) is provided with a plurality of temperature measuring probes (27), and the plurality of temperature measuring probes (27) are equidistantly arranged. The outside of the shell (21) is further provided with a controller (28), and the controller (28) includes a processor and an alarm device. The processor is connected with the temperature measuring probes (27) and the alarm device.
3. The sludge incineration preheating device with real-time temperature control alarm according to claim 1, characterized in that, The shell (21) is provided with a second exhaust port (214), and the second exhaust port (214) is communicated with the cavity (213).
4. The sludge incineration preheating device with real-time temperature control alarm according to claim 1, characterized in that, The first preheating mechanism (10) is installed at the second inlet (212) of the shell (21), and the first preheating mechanism (10) includes a preheating cylinder (11), a stirring assembly arranged inside the preheating cylinder (11), and a jet assembly. The stirring assembly includes a rotating shaft (12) rotatably installed inside the preheating cylinder (11) and a plurality of stirring blades (13) fixedly installed on the rotating shaft (12).
5. The sludge incineration preheating device with real-time temperature control alarm according to claim 4, characterized in that, The jet assembly includes a bracket fixedly installed on the preheating cylinder (11), a first air inlet pipe (15) fixedly installed on the bracket, and a spray head (14) installed inside the preheating cylinder (11). The first air inlet pipe (15) is communicated with the spray head (14) through a connecting pipe (16).
6. The sludge incineration preheating device with real-time temperature control alarm according to claim 5, characterized in that, The preheating cylinder (11) is provided with a first inlet (111), and the inside of the preheating cylinder (11) is provided with a first outlet (112). The first outlet (112) is communicated with the second inlet (212), and the first outlet (112) is provided with a rotating discharge disc (18) and a fixed discharge disc (19). The rotating discharge disc (18) is rotatably installed at the first outlet (112), and the rotating discharge disc (18) is fixedly connected with the rotating shaft (12). The fixed discharge disc (19) is fixedly installed at the first outlet (112).
7. The sludge incineration preheating device with real-time temperature control alarm according to claim 6, characterized in that, The rotating discharging disc (18) and the fixed discharging disc (19) are of the same structure, and the rotating discharging disc (18) comprises a disc body (181) and a plurality of discharging holes (182) formed in the disc body (181).