A device and method for detecting moisture content of sludge

Abstract

The present invention discloses a sludge moisture content detection device, which relates to the technical field of sludge moisture content detection, and comprises a feeding mechanism, a screening mechanism, a detection mechanism and a collecting mechanism arranged in a cylindrical box; the feeding mechanism is arranged at the top of the box, for the entry of sludge, and classified processing according to the state of the sludge; the screening mechanism is arranged below the feeding mechanism, for removing sludge impurities and filtering large sludge; the detection mechanism is arranged below the screening mechanism, for detecting the moisture content of block sludge and non-block sludge; the collecting mechanism is arranged at the bottom of the box, for collecting the sludge that has been detected and the waste generated during the screening. The sludge moisture content detection device of the present invention divides the sludge into two processing methods according to the different states of the sludge, first crushing and stirring the block sludge, and then filtering to reduce the pores, and directly filtering the non-block sludge to reduce impurities, so as to improve the detection accuracy.

Description

Technical Field

[0001] The invention belongs to the technical field of sludge moisture content detection, and particularly relates to a sludge moisture content detection device and method. Background Art

[0002] Sludge is an inevitable byproduct of urban sewage treatment and industrial wastewater treatment. Its treatment and disposal are of great significance to environmental protection and resource recovery. The moisture content of sludge is a key parameter for evaluating its physical properties and subsequent treatment processes, and directly affects the dehydration, drying and final disposal of sludge. With the continuous development of sewage treatment technology, the amount of sludge generated has increased year by year. How to effectively and accurately detect the moisture content of sludge has become an urgent problem to be solved in the sewage treatment industry.

[0003] At present, the commonly used method for detecting the moisture content of sludge is mainly the drying method. The drying method is to dry the sludge sample at high temperature to constant weight and calculate its moisture content. Although this method is accurate, it is cumbersome and time-consuming, usually taking hours or even days to get the results. In addition, the drying process may cause changes in the properties of the sample, affecting subsequent analysis.

[0004] After searching, a Chinese patent (CN113607758A) discloses a sludge moisture content detection device and method, including an operating table, a feeding unit, a volume mass detection unit, a microwave detection unit and an information processing unit. The feeding unit pushes the sludge block to each detection area for detection, and the infrared transceiver is used to determine the position of the sludge block and control the start and stop of the push plate. The volume mass detection unit detects the length, width and height of the sludge block to calculate the volume, transmits the mass and volume to the information processing unit, transmits the length, width and height to the first, second and third level moving devices for locating the mud core of the sludge, and the microwave signal transmission device is used to detect the microwave electrical signal and transmit it to the information processing unit. The information processing unit uses a ternary quadratic measurement model, including three input variables of volume, mass and microwave electrical signal quantity, which can improve the accuracy of the detection result.

[0005] However, the above-mentioned sludge moisture content detection device cannot classify and detect bulk and non-bulk sludge, resulting in low detection accuracy. Therefore, it is particularly important to develop a new sludge moisture content detection device and method that can achieve fast, accurate, non-destructive, and classified detection. Summary of the invention

[0006] The purpose of the present invention is to provide a sludge moisture content detection device and method to solve the problem that the existing detection devices are complicated to operate and time-consuming.

[0007] The present invention is realized by the following technical scheme: a sludge moisture content detection device, comprising a feeding mechanism, a screening mechanism, a detection mechanism and a collection mechanism arranged in a cylindrical box;

[0008] The feeding mechanism is arranged at the top of the box body, and is used for the entry of sludge, and is classified and processed according to the state of the sludge;

[0009] The screening mechanism is arranged below the feeding mechanism and is used to remove sludge impurities and filter large sludge blocks;

[0010] The detection mechanism is arranged below the screening mechanism and is used to detect the moisture content of the bulk sludge and the non-bulk sludge;

[0011] The collecting mechanism is arranged at the bottom of the box body and is used for collecting the sludge after detection and the waste generated during the screening process.

[0012] Preferably, the feeding mechanism comprises a rectangular box body, in which a first chamber is arranged; an entrance is arranged at the upper end of the box body, a camera is also arranged at the entrance of the box body, a first feeding port and a second feeding port are respectively arranged on both sides of the lower end surface of the box body, and a first baffle plate and a second baffle plate are respectively arranged at the first feeding port and the second feeding port, a crushing and stirring mechanism is arranged below the first feeding port, and a feeding channel is arranged below the second feeding port; a first push plate and a second push plate are respectively arranged at the inner side walls of the box body;

[0013] A first telescopic rod, a second telescopic rod, a third telescopic rod, and a fourth telescopic rod are fixedly installed on both sides of the inner wall of the box body, respectively. The movable end of the first telescopic rod is connected to the first push plate, the movable end of the fourth telescopic rod is connected to the second push plate, the movable end of the second telescopic rod is connected to the first baffle, and the movable end of the third telescopic rod is connected to the second baffle;

[0014] During use, when the sludge enters the first chamber, the camera identifies the state of the sludge. If it is non-lump sludge, the first telescopic rod drives the first push plate to extend toward the position of the second push plate, and pushes the sludge above the second baffle. The third telescopic rod contracts and drives the second baffle to move outward, and the sludge on the second baffle falls from the second discharge port into the discharge channel and enters the screening mechanism. If it is lump sludge, the fourth telescopic rod drives the second push plate to extend toward the position of the first push plate, and pushes the sludge above the first baffle. The second telescopic rod contracts and drives the first baffle to move outward, and the sludge on the first baffle falls from the first discharge port into the crushing and stirring mechanism.

[0015] Preferably, the crushing and stirring mechanism includes a crushing barrel, a bottom plate is provided at the bottom of the crushing barrel, one side of the bottom plate is rotatably connected to a side wall of the crushing barrel through a first rotating shaft, and the first rotating shaft is driven to rotate by a servo motor; two first rollers are symmetrically provided on the inner walls on both sides of the crushing barrel, the first rollers are inclinedly arranged, and are driven to rotate by a motor 1 arranged on the outer wall of the crushing barrel; a second roller is provided at the upper end of the bottom plate, the second roller is horizontally arranged, and is driven to rotate by a motor 2 arranged at the lower end of the bottom plate.

[0016] When the lumpy sludge enters the crushing barrel, the sludge is fully crushed and stirred through the squeezing of the first roller and the second roller. After crushing and stirring, the servo motor drives the bottom plate to rotate downward and open to unload the sludge.

[0017] Preferably, the screening mechanism comprises a filter box, a first high-speed jet valve, a filter screen, a fixed gear ring, a driving gear, a rolling gear, a connecting shaft, a waste port and a discharge pipe; the filter screen is installed inside the filter box at an angle of 15 degrees; the first high-speed jet valve is located on the inner wall of the filter box above the higher end of the filter screen, and the waste port is located on the filter box above the lower end of the filter screen; the discharge pipe is fixed below the filter box;

[0018] Two connecting shafts are symmetrically connected to the outer walls on both sides of the filter box, and the outer end of each connecting shaft is rotatably connected to a rolling gear. There are two fixed gear rings, which are respectively fixedly installed on two opposite inner walls of the box body. A driving gear is provided in the middle of the fixed gear ring, and the driving gear is driven to rotate by a motor; the rolling gear of the connecting shaft extends into the groove of the fixed gear ring and meshes with the driving gear and the fixed gear ring.

[0019] When in use, the motor drives the driving gear to rotate 360 ​​degrees in the fixed gear ring, and drives the filter box to do circular motion through the rolling gear and the connecting shaft, which promotes the screening and discharge of impurities and large pieces of sludge. After the screening is completed, the first high-speed jet valve will clean the impurities and sludge remaining on the filter net.

[0020] Preferably, the discharge pipe is wide at the top and narrow at the bottom to ensure that all the sludge can enter the detection device.

[0021] Preferably, the detection mechanism includes a radio frequency detection module, a support frame, a third baffle, a fifth telescopic rod, an electromagnetic induction detection module, a fourth baffle and a sixth telescopic rod.

[0022] The radio frequency detection module is located above the support frame, and the upper end of the radio frequency detection module is connected to the discharge pipe.

[0023] The electromagnetic induction detection module is located below the support frame, the third baffle is located inside the support frame and can move relatively, one side of the third baffle is connected to the fifth telescopic rod, and the fifth telescopic rod is installed on the inner wall of the box body; the fourth baffle is located below the electromagnetic induction detection module, one side of the fourth baffle is connected to the sixth telescopic rod, and the sixth telescopic rod is installed on the inner wall of the box body;

[0024] When the sludge enters the detection mechanism, the corresponding module is used for detection according to the sludge state determined by the camera. If the sludge is in block form, the radio frequency detection module is used for detection; if the sludge is not in block form, the electromagnetic induction detection module is used for detection.

[0025] Preferably, a second chamber is provided inside the radio frequency detection module, a transmitting antenna and a receiving antenna are provided on both side inner walls of the second chamber respectively, and a weight sensor and a first temperature sensor are provided inside the third baffle.

[0026] Preferably, a third chamber is provided inside the electromagnetic induction detection module, a transmitting coil and a receiving coil are wound around the outer wall of the third chamber, the transmitting coil is located above the receiving coil, a protective cover is provided outside the transmitting coil and the receiving coil, and a second temperature sensor is provided inside the fourth baffle.

[0027] Preferably, the collecting mechanism comprises a collecting box, a second high-speed jet valve and a third high-speed jet valve; the collecting box is arranged at the bottom of the box body and can be drawn out from the outside of the box body; the second high-speed jet valve is located on the fifth telescopic rod, and the third high-speed jet valve is located on the sixth telescopic rod.

[0028] A detection method of a sludge moisture content detection device comprises the following steps:

[0029] Step 1: Identify the state of the sludge through the camera to determine whether the sludge is block sludge or non-block sludge;

[0030] Step 2: crushing and stirring the block sludge by using a crushing and stirring mechanism;

[0031] Step 3: Using a screening mechanism to remove impurities from the crushed and stirred bulk sludge or non-bulk sludge;

[0032] Step 4: using a radio frequency detection module to detect the moisture content of the bulk sludge, and using an electromagnetic induction detection module to detect the moisture content of the non-bulk sludge;

[0033] Step 5: Collect the tested sludge and discharge impurities and large sludge from the waste outlet of the screening mechanism.

[0034] Preferably, the method for the radio frequency detection module to detect the moisture content of the bulk sludge is:

[0035] The sludge temperature is measured by the first temperature sensor, the sludge weight is measured by the weight sensor, the transmitting antenna sends out an electromagnetic wave signal, which is received by the receiving antenna after passing through the sludge, and the measured signal is sent to the computer through the data acquisition card and brought into the radio frequency moisture content measurement model. The radio frequency moisture content measurement model is:

[0036] ,

[0037] is the moisture content, is the volume of the second chamber, is the received voltage value, is the sludge temperature, By measuring the sludge weight, the sludge moisture content value can be obtained and displayed.

[0038] Preferably, the method for the electromagnetic induction detection module to detect the moisture content of non-block sludge is:

[0039] The sludge temperature is measured by the second temperature sensor, and an alternating induction electromagnetic field is generated around the transmitting coil. After passing through the sludge, an induced electromotive force is generated on the receiving coil. The measured signal is sent to the computer through the data acquisition card and brought into the electromagnetic induction moisture content measurement model. The electromagnetic induction moisture content measurement model is:

[0040] ,

[0041] is the moisture content, is the value of the induced electromotive force, is the sludge temperature, the sludge moisture content can be obtained and displayed.

[0042] Compared with the prior art, the present invention has the following advantages:

[0043] 1. The sludge moisture content detection device of the present invention divides the sludge into two treatment methods according to the different sludge states. The block sludge is first crushed and stirred, and then filtered to reduce the pores. The non-block sludge is directly filtered to reduce impurities to improve the detection accuracy.

[0044] 2. The sludge moisture content detection device of the present invention detects the moisture content of sludge, which takes a short time and has a high degree of automation.

[0045] 3. The crushing and stirring mechanism of the present invention squeezes the block sludge by the symmetrically inclined first roller and the horizontally arranged second roller, so that the sludge can be fully crushed and stirred, thereby increasing the crushing and stirring effects.

[0046] 4. The screening mechanism of the present invention is driven by a motor to drive the gear to rotate 360 ​​degrees in a fixed gear ring, and the filter box is driven to make a circular motion through the rolling gear and the connecting shaft, so that the filter screen shakes continuously, promoting the screening and discharge of impurities and large sludge, and improving the screening effect.

[0047] 5. The detection method of the sludge moisture content detection device of the present invention can be divided into two detection methods according to the different sludge moisture contents. The sludge with high moisture content is detected by electromagnetic induction technology, and the sludge with residual moisture content is detected by radio frequency technology. The two methods are combined to improve the accuracy of sludge moisture content detection in the whole range. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1It is a structural schematic diagram of a sludge moisture content detection device;

[0049] Figure 2 It is a structural schematic diagram of a feeding mechanism in a sludge moisture content detection device;

[0050] Figure 3 It is a structural schematic diagram of a crushing and stirring mechanism in a sludge moisture content detection device;

[0051] Figure 4 It is a structural schematic diagram of a screening mechanism in a sludge moisture content detection device;

[0052] Figure 5 It is a structural schematic diagram of a collecting mechanism in a sludge moisture content detection device;

[0053] Figure 6 It is a structural schematic diagram of a detection mechanism in a sludge moisture content detection device;

[0054] Figure 7 The present invention is a flow chart of a detection method of a sludge moisture content detection device.

[0055] Numbers in the figure:

[0056] 1. Feeding mechanism; 101. Box body; 102. First push plate; 103. First telescopic rod; 104. Second telescopic rod; 105. First baffle; 106. First discharge port; 107. First chamber; 108. Second discharge port; 109. Second baffle; 110. Third telescopic rod; 111. Fourth telescopic rod; 112. Second push plate; 113. Camera;

[0057] 2. Crushing and stirring mechanism; 201. first roller; 202. motor 1; 203. second roller; 204. first rotating shaft; 205. bottom plate; 206. motor 2; 207. crushing barrel;

[0058] 3. Screening mechanism; 301. Filter box; 302. First high-speed jet valve; 303. Filter screen; 304. Fixed gear ring; 305. Driving gear; 306. Rolling gear; 307. Connecting shaft; 308. Waste outlet; 309. Discharge pipe;

[0059] 4. Detection mechanism; 401. Radio frequency detection module; 402. Support frame; 403. Third baffle; 404. Fifth telescopic rod; 405. Electromagnetic induction detection module; 406. Fourth baffle; 407. Sixth telescopic rod;

[0060] 4011, second chamber; 4012, transmitting antenna; 4013, first temperature sensor; 4014, receiving antenna; 4015, weight sensor;

[0061] 4051, third chamber; 4052, protective cover; 4053, second temperature sensor; 4054, transmitting coil; 4055, receiving coil;

[0062] 5. Feeding channel;

[0063] 6. Collection mechanism; 601. Collection box; 602. Second high-speed jet valve; 603. Third high-speed jet valve. DETAILED DESCRIPTION

[0064] 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.

[0065] Embodiment 1

[0066] See also Figure 1-Figure 6 , a sludge moisture content detection device, comprising a feeding mechanism 1, a screening mechanism 3, a detection mechanism 4 and a collecting mechanism 6 arranged in a cylindrical box;

[0067] The feeding mechanism 1 is arranged at the top of the box body, and is used for the entry of sludge, and is classified and processed according to the state of the sludge;

[0068] The screening mechanism 3 is arranged below the feeding mechanism 1 and is used to remove sludge impurities and filter large sludge;

[0069] The detection mechanism 4 is arranged below the screening mechanism 3 and is used to detect the moisture content of the bulk sludge and the non-bulk sludge;

[0070] The collecting mechanism 6 is arranged at the bottom of the box body, and is used to collect the detected sludge and the waste generated during the screening.

[0071] In this embodiment, the feeding mechanism 1 includes a rectangular box body 101, and a first chamber 107 is provided in the box body 101; an entrance is provided at the upper end of the box body 101, and a camera 113 is also provided at the entrance of the box body 101; a first discharge port 106 and a second discharge port 108 are provided on both sides of the lower end surface of the box body 101, and a first baffle 105 and a second baffle 109 are provided at the first discharge port 106 and the second discharge port 108, respectively; a crushing and stirring mechanism 2 is provided below the first discharge port 106, and a discharge channel 5 is provided below the second discharge port 108; a first push plate 102 and a second push plate 112 are provided at the inner side walls of the box body 101;

[0072] The first telescopic rod 103, the second telescopic rod 104, the third telescopic rod 110 and the fourth telescopic rod 111 are fixedly installed on both sides of the inner wall of the box body, the movable end of the first telescopic rod 103 is connected to the first push plate 102, the movable end of the fourth telescopic rod 111 is connected to the second push plate 112, the movable end of the second telescopic rod 104 is connected to the first baffle 105, and the movable end of the third telescopic rod 110 is connected to the second baffle 109.

[0073] During use, when the sludge enters the first chamber 107, the camera 113 identifies the state of the sludge. If it is non-lump sludge, the first telescopic rod 103 drives the first push plate 102 to extend toward the position of the second push plate 112, and pushes the sludge to the top of the second baffle 109. The third telescopic rod 110 contracts and drives the second baffle 109 to move outward. The sludge on the second baffle 109 falls from the second discharge port 108 into the discharge channel 5 and enters the screening mechanism 3. If it is lump sludge, the fourth telescopic rod 111 drives the second push plate 112 to extend toward the position of the first push plate 102, and pushes the sludge to the top of the first baffle 105. The second telescopic rod 104 contracts and drives the first baffle 105 to move outward. The sludge on the first baffle 105 falls from the first discharge port 106 into the crushing and stirring mechanism 2.

[0074] In this embodiment, the crushing and stirring mechanism 2 includes a crushing barrel 207, a bottom plate 205 is provided at the bottom of the crushing barrel 207, one side of the bottom plate 205 is rotatably connected to a side wall of the crushing barrel 207 through a first rotating shaft 204, and the first rotating shaft 204 is driven to rotate by a servo motor (not shown in the figure); two first rollers 201 are symmetrically provided on the inner walls of both sides of the crushing barrel 207, the first rollers 201 are tiltedly arranged, and are driven to rotate by a motor 202 arranged on the outer wall of the crushing barrel 207; a second roller 203 is provided at the upper end of the bottom plate 205, the second roller 203 is horizontally arranged, and is driven to rotate by a motor 2 206 arranged at the lower end of the bottom plate 205.

[0075] When the block sludge enters the crushing barrel 207, the sludge is fully crushed and stirred by the squeezing of the first roller 201 and the second roller 203. After crushing and stirring, the bottom plate 205 is driven by the servo motor to rotate downward and open, so that the sludge can be unloaded.

[0076] In this embodiment, the screening mechanism 3 includes a filter box 301, a first high-speed jet valve 302, a filter screen 303, a fixed gear ring 304, a driving gear 305, a rolling gear 306, a connecting shaft 307, a waste port 308 and a discharge pipe 309; the filter screen 303 is installed inside the filter box 301 at an angle of 15 degrees; the first high-speed jet valve 302 is located on the inner wall of the filter box 301 above the higher end of the filter screen 303, and the waste port 308 is located on the filter box 301 above the lower end of the filter screen 303; the discharge pipe 309 is fixed below the filter box 301;

[0077] Two connecting shafts 307 are symmetrically connected to the outer walls of both sides of the filter box 301. The outer end of each connecting shaft 307 is rotatably connected to the rolling gear 306. There are two fixed gear rings 304, which are fixedly installed on two opposite inner walls of the box body. A driving gear 305 is provided in the middle of the fixed gear ring 304, and the driving gear 305 is driven to rotate by a motor (not shown in the figure); the rolling gear 306 of the connecting shaft 307 extends into the groove of the fixed gear ring 304 and meshes with the driving gear 305 and the fixed gear ring 304. The discharge pipe 309 is wide at the top and narrow at the bottom to ensure that all the sludge can enter the detection device.

[0078] When in use, the motor drives the driving gear 305 to rotate 360 ​​degrees in the fixed gear ring 304, and drives the filter box 301 to do circular motion through the rolling gear 306 and the connecting shaft 307, thereby promoting the screening and discharge of impurities and large pieces of sludge. After the screening is completed, the first high-speed jet valve 302 will clean the impurities and sludge remaining on the filter screen 303.

[0079] In this embodiment, the detection mechanism 4 includes a radio frequency detection module 401, a support frame 402, a third baffle 403, a fifth telescopic rod 404, an electromagnetic induction detection module 405, a fourth baffle 406 and a sixth telescopic rod 407. The radio frequency detection module 401 is located above the support frame 402, and the upper end of the radio frequency detection module 401 is connected to the discharge pipe 309. The electromagnetic induction detection module 405 is located below the support frame 402. The third baffle 403 is located inside the support frame 402 and can move relatively. One side of the third baffle 403 is connected to the fifth telescopic rod 404, and the fifth telescopic rod 404 is installed on the inner wall of the box; the fourth baffle 406 is located below the electromagnetic induction detection module 405, and one side of the fourth baffle 406 is connected to the sixth telescopic rod 407, and the sixth telescopic rod 407 is installed on the inner wall of the box;

[0080] When the sludge enters the detection mechanism 4, the corresponding module is used for detection according to the sludge state determined by the camera 113. If the sludge is in block form, the radio frequency detection module 401 is used for detection; if the sludge is not in block form, the electromagnetic induction detection module 405 is used for detection.

[0081] A second chamber 4011 is provided inside the radio frequency detection module 401 , a transmitting antenna 4012 and a receiving antenna 4014 are provided on both inner walls of the second chamber 4011 , and a weight sensor 4015 and a first temperature sensor 4013 are provided inside the third baffle 403 .

[0082] A third chamber 4051 is provided inside the electromagnetic induction detection module 405, and a transmitting coil 4054 and a receiving coil 4055 are wound around the outer wall of the third chamber 4051. The transmitting coil 4054 is located above the receiving coil 4055. A protective cover 4052 is also provided outside the transmitting coil 4054 and the receiving coil 4055. A second temperature sensor 4053 is provided inside the fourth baffle 406.

[0083] The collecting mechanism 6 includes a collecting box 601, a second high-speed jet valve 602 and a third high-speed jet valve 603. The collecting box 601 is arranged at the bottom of the box and can be drawn out from the outside of the box; the second high-speed jet valve 602 is located on the fifth telescopic rod 404, and the third high-speed jet valve 603 is located on the sixth telescopic rod 407.

[0084] Embodiment 2

[0085] This embodiment proposes a detection method of a sludge moisture content detection device based on the embodiment. Figure 7 , including the following steps:

[0086] Step 1: Identify the state of the sludge by using the camera 113 to determine whether the sludge is agglomerated sludge or non-agglomerated sludge;

[0087] Step 2: crushing and stirring the block sludge by using the crushing and stirring mechanism 2;

[0088] Step 3: using the screening mechanism 3 to remove impurities from the crushed and stirred bulk sludge or non-bulk sludge;

[0089] Step 4: using the radio frequency detection module 401 to detect the moisture content of the bulk sludge, and using the electromagnetic induction detection module 405 to detect the moisture content of the non-bulk sludge;

[0090] Step 5: Collect the sludge after testing and discharge impurities and large sludge from the waste outlet 308 of the screening mechanism 3.

[0091] The method by which the radio frequency detection module 401 detects the moisture content of the bulk sludge is:

[0092] The sludge temperature is measured by the first temperature sensor 4013, the sludge weight is measured by the weight sensor 4015, the transmitting antenna 4012 sends out an electromagnetic wave signal, which is received by the receiving antenna 4014 after passing through the sludge, and the measured signal is sent to the computer through the data acquisition card and brought into the radio frequency moisture content measurement model. The radio frequency moisture content measurement model is:

[0093] ,

[0094] is the moisture content, is the volume of the second chamber 4011, is the received voltage value, is the sludge temperature, By measuring the sludge weight, the sludge moisture content value can be obtained and displayed.

[0095] The electromagnetic induction detection module 405 detects the moisture content of the non-lump sludge in the following manner:

[0096] The sludge temperature is measured by the second temperature sensor 4053, and an alternating induction electromagnetic field is generated around the transmitting coil 4054. After passing through the sludge, an induced electromotive force is generated on the receiving coil 4055. The measured signal is sent to the computer through the data acquisition card and brought into the electromagnetic induction moisture content measurement model. The electromagnetic induction moisture content measurement model is:

[0097] ,

[0098] is the moisture content, is the value of the induced electromotive force, is the sludge temperature, the sludge moisture content can be obtained and displayed.

[0099] Working principle of the present invention:

[0100] When the sludge enters the first chamber 107, the camera 113 identifies the state of the sludge and determines whether the sludge is block sludge or non-block sludge. If it is non-block sludge, the first telescopic rod 103 drives the first push plate 102 to extend toward the position of the second push plate 112, pushes the sludge to the top of the second baffle 109, and the third telescopic rod 110 contracts to drive the second baffle 109 to move outward, and the sludge on the second baffle 109 falls from the second discharge port 108 into the discharge channel 5 and enters the screening mechanism 3; if it is block sludge, the fourth telescopic rod 111 drives the second push plate 112 to extend toward the position of the first push plate 102, pushes the sludge to the top of the first baffle 105, and the second telescopic rod 104 contracts to drive the first baffle 105 to move outward, and the sludge on the first baffle 105 falls from the first discharge port 106 into the crushing and stirring mechanism 2, and then enters the screening mechanism 3 from the crushing and stirring mechanism 2. After the sludge enters the crushing and stirring mechanism 2, the first roller 201 and the second roller 203 start to rotate to crush and stir the sludge evenly. After a period of time, the first roller 201 and the second roller 203 stop moving, and the first rotating shaft 204 rotates counterclockwise to drive the bottom plate 205 to open downward, and the sludge falls from the crushing and stirring mechanism 2 into the screening mechanism 3. When the sludge enters the screening mechanism 3, it will fall on the filter 303, and the motor drives the driving gear 305 to rotate 360 ​​degrees in the fixed gear ring 304, and the rolling gear 306 and the connecting shaft 307 drive the filter box 301 to do a circular motion to promote the screening and discharge of impurities and large pieces of sludge. After the screening is completed, the first high-speed jet valve 302 will clean the impurities and sludge remaining on the filter 303, and the screened impurities and large pieces of sludge will be discharged through the waste port 308. The sludge passing through the filter 303 will fall into the discharge pipe 309 and enter the detection mechanism 4 from the discharge pipe 309.After the sludge enters the detection mechanism 4, if the sludge is in block form, the radio frequency detection module 401 is used for detection, the block sludge enters the second chamber 4011, the first temperature sensor 4013 measures the sludge temperature, the weight sensor 4015 measures the sludge weight, the transmitting antenna 4012 sends an electromagnetic wave signal, which is received by the receiving antenna 4014 after passing through the sludge, and the measured signal is sent to the computer through the data acquisition card, brought into the radio frequency moisture content measurement model, and the sludge moisture content value can be obtained and displayed. After the detection is completed, the fifth telescopic rod 404 drives the third baffle 403 to move outward, and the sixth telescopic rod 407 drives the fourth baffle 406 to move outward to discharge the sludge from the detection. If the sludge is not in block form, the electromagnetic induction detection module 405 is used for detection. The fifth telescopic rod 404 first drives the third baffle 403 to move outward, and the non-block sludge enters the third chamber 4051. The second temperature sensor 4053 measures the sludge temperature. An alternating induced electromagnetic field is generated around the transmitting coil 4054, and an induced electromotive force is generated on the receiving coil 4055 after passing through the sludge. The measured signal is sent to the computer through the data acquisition card and brought into the electromagnetic induction moisture content measurement model to obtain the sludge moisture content value and display it. After the detection is completed, the sixth telescopic rod 407 drives the fourth baffle 406 to move outward to discharge the sludge out of the detection mechanism 4. When the sludge enters the screening mechanism 3, impurities and large pieces of sludge will be discharged from the waste port 308. Most of these impurities and sludge will fall into the collecting box 601, and a small part will fall on the fifth telescopic rod 404 and the sixth telescopic rod 407. The second high-speed jet valve 602 will blow the impurities and sludge on the fifth telescopic rod 404 into the collecting box 601, and the third high-speed jet valve 603 will blow the impurities and sludge on the sixth telescopic rod 407 into the collecting box 601. When the detection is completed, the sludge in the detection mechanism 4 will also fall into the collecting box 601.

[0101] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0102] 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 sludge moisture content detection device, characterized in that: The invention comprises a feeding mechanism (1), a screening mechanism (3), a detection mechanism (4) and a collecting mechanism (6) arranged in a cylindrical box body; the feeding mechanism (1) is arranged on the top of the box body, the feeding mechanism (1) comprises a first chamber (107) for storing sludge and a camera (113) for identifying the state of the sludge, and classifies and processes the sludge according to the state of the sludge; the screening mechanism (3) is arranged below the feeding mechanism (1), the screening mechanism (3) comprises a filter screen (303) for filtering the sludge, a first high-speed jet valve (302) for removing residual waste on the filter screen (303) and a filter (304) for removing the residual waste on the filter screen (303). The box body comprises a fixed gear ring (304), a driving gear (305), a rolling gear (306) and a connecting shaft (307) for accelerating sludge filtration; the detection mechanism (4) is arranged below the screening mechanism (3); the detection mechanism (4) comprises a radio frequency detection module (401) for detecting the moisture content of bulk sludge and an electromagnetic induction detection module (405) for detecting the moisture content of non-bulk sludge, and the radio frequency detection module (401) is located above the electromagnetic induction detection module (405); the collection mechanism (6) is arranged at the bottom of the box body, and is used to collect the sludge that has been detected and the waste generated during the screening process; The detection mechanism (4) comprises a radio frequency detection module (401), a support frame (402), a third baffle (403), a fifth telescopic rod (404), an electromagnetic induction detection module (405), a fourth baffle (406) and a sixth telescopic rod (407); The radio frequency detection module (401) is located above the support frame (402), and the upper end of the radio frequency detection module (401) is connected to the discharge pipe (309). The electromagnetic induction detection module (405) is located below the support frame (402). The third baffle (403) is located inside the support frame (402) and can move relatively. One side of the third baffle (403) is connected to a fifth telescopic rod (404), and the fifth telescopic rod (404) is installed on the inner wall of the box body. The fourth baffle (406) is located below the electromagnetic induction detection module (405), and one side of the fourth baffle (406) is connected to a sixth telescopic rod (407), and the sixth telescopic rod (407) is installed on the inner wall of the box body. A second chamber (4011) is provided inside the radio frequency detection module (401), a transmitting antenna (4012) and a receiving antenna (4014) are provided on the inner walls on both sides of the second chamber (4011), and a weight sensor (4015) and a first temperature sensor (4013) are provided inside the third baffle (403); A third chamber (4051) is provided inside the electromagnetic induction detection module (405), a transmitting coil (4054) and a receiving coil (4055) are wound around the outer wall of the third chamber (4051), the transmitting coil (4054) is located above the receiving coil (4055), and a protective cover (4052) is provided outside the transmitting coil (4054) and the receiving coil (4055), and a second temperature sensor (4053) is provided inside the fourth baffle (406).

2. A sludge moisture content detection device according to claim 1, characterized in that: The feeding mechanism (1) further comprises a rectangular box body (101), wherein the first chamber (107) is provided in the box body (101); an entrance is provided at the upper end of the box body (101), and the camera (113) is also provided at the entrance of the box body (101); a first discharge port (106) and a second discharge port (108) are provided at both sides of the lower end surface of the box body (101), and a first baffle (105) and a second baffle (109) are provided at the first discharge port (106) and the second discharge port (108), respectively; a crushing and stirring mechanism (2) is provided below the first discharge port (106), and a discharge channel (5) is provided below the second discharge port (108); a first push plate (102) and a second push plate (112) are provided at both side walls inside the box body (101); A first telescopic rod (103), a second telescopic rod (104), a third telescopic rod (110), and a fourth telescopic rod (111) are respectively fixedly mounted on both sides of the inner wall of the box body; the movable end of the first telescopic rod (103) is connected to the first push plate (102), the movable end of the fourth telescopic rod (111) is connected to the second push plate (112), the movable end of the second telescopic rod (104) is connected to the first baffle plate (105), and the movable end of the third telescopic rod (110) is connected to the second baffle plate (109).

3. A sludge moisture content detection device according to claim 2, characterized in that: The crushing and stirring mechanism (2) comprises a crushing barrel (207), a bottom plate (205) being provided at the bottom of the crushing barrel (207), one side of the bottom plate (205) being rotatably connected to a side wall of the crushing barrel (207) via a first rotating shaft (204), the first rotating shaft (204) being driven to rotate by a servo motor; two first rollers (201) are symmetrically provided on the inner walls of both sides of the crushing barrel (207), the first rollers (201) being arranged obliquely and driven to rotate by a motor 1 (202) arranged on the outer wall of the crushing barrel (207); and a second roller (203) is provided at the upper end of the bottom plate (205), the second roller (203) being arranged horizontally and driven to rotate by a motor 2 (206) arranged at the lower end of the bottom plate (205).

4. A sludge moisture content detection device according to claim 1, characterized in that: The screening mechanism (3) further comprises a filter box (301), a waste material outlet (308) and a discharge pipe (309); the filter screen (303) is installed inside the filter box (301) at an angle of 15 degrees; the first high-speed jet valve (302) is located on the inner wall of the filter box (301) above the higher end of the filter screen (303); the waste material outlet (308) is located on the filter box (301) above the lower end of the filter screen (303); the discharge pipe (309) is fixed below the filter box (301); Two connecting shafts (307) are symmetrically connected to the outer walls of both sides of the filter box (301); the outer end of each connecting shaft (307) is rotatably connected to a rolling gear (306); there are two fixed gear rings (304), which are respectively fixedly mounted on two opposite inner walls of the box body; a driving gear (305) is provided in the middle of the fixed gear ring (304), and the driving gear (305) is driven to rotate by a motor; the rolling gear (306) of the connecting shaft (307) extends into the groove of the fixed gear ring (304), and meshes with the driving gear (305) and the fixed gear ring (304); The discharge pipe (309) is wide at the top and narrow at the bottom, ensuring that all the sludge can enter the detection device.

5. A detection method for a sludge moisture content detection device, characterized in that: The steps include: Step 1: Identify the state of the sludge by using a camera (113) to determine whether the sludge is agglomerated sludge or non-agglomerated sludge; Step 2: using the crushing and stirring mechanism (2) to crush and stir the block sludge; Step 3: using the screening mechanism (3) to remove impurities from the crushed and stirred bulk sludge or non-bulk sludge; Step 4: using the radio frequency detection module (401) to detect the moisture content of the bulk sludge, and using the electromagnetic induction detection module (405) to detect the moisture content of the non-bulk sludge; Step 5: Collect the sludge after testing and discharge impurities and large sludge from the waste outlet (308) of the screening mechanism (3); The method in which the radio frequency detection module (401) detects the moisture content of the bulk sludge is: The sludge temperature is measured by the first temperature sensor (4013), the sludge weight is measured by the weight sensor (4015), the transmitting antenna (4012) emits an electromagnetic wave signal, which is received by the receiving antenna (4014) after passing through the sludge, and the measured signal is sent to the computer through the data acquisition card and brought into the radio frequency moisture content measurement model. The radio frequency moisture content measurement model is: ， is the moisture content, is the volume of the second chamber (4011), is the received voltage value, is the sludge temperature, To measure the sludge weight, the sludge moisture content value can be obtained and displayed; The method in which the electromagnetic induction detection module (405) detects the moisture content of the non-lump sludge is: The sludge temperature is measured by the second temperature sensor (4053), and an alternating induction electromagnetic field is generated around the transmitting coil (4054). After passing through the sludge, an induced electromotive force is generated on the receiving coil (4055). The measured signal is sent to the computer through the data acquisition card and brought into the electromagnetic induction moisture content measurement model. The electromagnetic induction moisture content measurement model is: , is the moisture content, is the value of the induced electromotive force, is the sludge temperature, the sludge moisture content can be obtained and displayed.

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