CN204934032U - A kind of device of XRF on-line checkingi sorting building waste - Google Patents
A kind of device of XRF on-line checkingi sorting building waste Download PDFInfo
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- CN204934032U CN204934032U CN201520735112.1U CN201520735112U CN204934032U CN 204934032 U CN204934032 U CN 204934032U CN 201520735112 U CN201520735112 U CN 201520735112U CN 204934032 U CN204934032 U CN 204934032U
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Abstract
The utility model discloses the device of a kind of XRF on-line checkingi sorting building waste, comprising: XRF checkout gear, vibrating material feeding device, conveying device, high-pressure jet device, master control set, the first material collecting tank, the second material collecting tank.The device of a kind of XRF on-line checkingi sorting of the utility model building waste, can carry out quick online detection sorting to close building waste materials such as density, size, color, shapes, realize efficient process and the Appropriate application of building waste material.
Description
Technical field
The utility model relates to the device of a kind of XRF on-line checkingi sorting building waste.
Background technology
Day by day serious building waste problem brings immense pressure to urban environment, and the efficient process of building waste and resource recycling are inexorable trends.The rough segmentation that the sorting means such as existing screening, magnetic separation, selection by winnowing, manual sorting achieve building waste picks, but is difficult to the building waste material of the close different material such as efficient fine sorting density, size, color, shape.The deficiency that existing Sorting Technique exists constrains the raising of construction refuse resource recycling quality, and cannot realize it and more rationally utilize more efficiently.
Utility model content
The purpose of this utility model is to provide a kind of XRF on-line checkingi to sort the device of building waste, quick online detection sorting can be carried out to close building waste materials such as density, size, color, shapes, realize efficient process and the Appropriate application of building waste material.
For achieving the above object, the technical solution of the utility model is the device of a kind of XRF on-line checkingi sorting of design building waste, comprising: XRF checkout gear, vibrating material feeding device, conveying device, high-pressure jet device, master control set, the first material collecting tank, the second material collecting tank;
Described XRF checkout gear, the building waste material entering detection zone is detected, detect the fluorescent X-ray intensity of predetermined comparison element in building waste material, export corresponding detection data to master control set, this detection packet is containing the fluorescent X-ray intensity data of predetermined comparison element in above-mentioned building waste material;
Described vibrating material feeding device (as oscillating feeder), for providing building waste material to conveying device;
Described conveying device, for by the detection zone of building waste mass transport by XRF checkout gear, finally makes building waste material depart from a predetermined velocity and free-falling (dishing out at a predetermined velocity);
Described high-pressure jet device, control by master control set, to the building waste material inject high pressure gas on the first fall trajectory, building waste material is pushed the second fall trajectory from the first fall trajectory, the track of described first fall trajectory to be building waste material from conveying device depart from (dishing out) free-falling afterwards, described second fall trajectory is the movement locus of (again free-falling) after the building waste material on the first fall trajectory is sprayed by high-pressure jet;
Described master control set, receive the detection data exported described in XRF checkout gear, it is compared with pre-stored criteria sample data, to judge that whether building waste material corresponding to these detection data is for selecting material, when judging building waste material for selecting material, controlling high-pressure jet device and selecting the first fall trajectory inject high pressure gas of material to this in the given time;
Described first material collecting tank, collects the building waste material falling to the first fall trajectory end;
Described second material collecting tank, collect fall to the second fall trajectory end select material.
Preferably, described conveying device comprises: feed chute, conveyer belt, blow tank, and drives conveyer belt from feed chute to the drive unit of blow tank movement;
Described feed chute, its length direction is arranged along the width of conveyer belt; Described feed chute is provided with: for receive vibrating material feeding device export the feeding end of building waste material and some blanking ports for exporting single building waste material to conveyer belt; Each blanking port is positioned at the below of feeding end, and each blanking port along conveyer belt width uniformly at intervals;
Described blow tank, its length direction is arranged along the width of conveyer belt; Described blow tank is provided with some material casting passages; The two ends of single material casting passage are respectively: for receiving the feeding end of single building waste material on conveyer belt, and by discharge end that this single building waste material outwards exports; Single material casting passage, its discharge end is positioned at the below of feeding end; The feeding end of each material casting passage is uniform along the width of conveyer belt, and the blanking port one_to_one corresponding of feeding end and feed chute, feeding end receives the single building waste material that corresponding blanking port exports; The discharge end of each material casting passage is uniform along the width of conveyer belt, corresponding first fall trajectory of each discharge end, and this first fall trajectory exports by corresponding discharge end the track of building waste material free-falling;
Described XRF checkout gear is positioned at directly over conveyer belt, and it comprises: multichannel analyzer, amplifier, X-ray tube, and the silicon drifting detector of some sensing conveyer belts; Described X-ray tube, launches X-ray for the building waste material to detection zone; Each silicon drifting detector is uniform along the width of conveyer belt, and the blanking port one_to_one corresponding of silicon drifting detector and feed chute; Described silicon drifting detector gather corresponding blanking port export the fluorescent X-ray of single building waste material, and corresponding output pulse signal; Described amplifier, amplifies the pulse signal that silicon drifting detector exports and is delivered to multichannel analyzer; Described multichannel analyzer, processes the pulse signal after amplifier amplifies, generates and detect data, and detection data are sent to master control set;
Described master control set, receive the detection data of XRF checkout gear, it is compared with pre-stored criteria sample data, to judge that whether building waste material corresponding to each silicon drifting detector is for selecting material, when judging the building waste material corresponding to certain silicon drifting detector for selecting material, controlling high-pressure jet device and selecting material place first fall trajectory inject high pressure gas to this;
Described high-pressure jet device is positioned at below the blow tank of conveying device, and it comprises the jet thrust of some inject high pressure gas under master control set controls; Each jet thrust is uniform along the width of conveyer belt; And the discharge end one_to_one corresponding of jet thrust and blow tank, single jet thrust point to corresponding blow tank export the first fall trajectory of single building waste material free-falling, this single jet thrust is inject high pressure gas under master control set controls, and this single building waste material (selecting material) is pushed the second fall trajectory from its place first fall trajectory;
Described first material collecting tank is positioned at below the blow tank of conveying device, and its length direction is arranged along the width of conveyer belt; The end of each first fall trajectory is positioned at the first material collecting tank;
Described second material collecting tank is positioned at below the blow tank of conveying device, and its length direction is arranged along the width of conveyer belt; The end of each second fall trajectory is positioned at the second material collecting tank.
Preferably, each jet thrust of described high-pressure jet device is furnished with appendix respectively, and jet thrust connects gases at high pressure generating means by corresponding appendix, and each appendix is all provided with magnetic valve, each magnetic valve connects master control set, and master control set is jet by the corresponding jet thrust of solenoid control.
Preferably, also comprise for isolating the first material collecting tank, the perpendicular of the second material collecting tank puts demarcation strip, the length direction of this demarcation strip is arranged along the width of conveyer belt.
Preferably, the frame for supporting XRF checkout gear, vibrating material feeding device, conveying device, high-pressure jet device is also comprised.
Preferably, also comprise the casing for covering building waste Material Sorting region, described building waste Material Sorting region comprises building waste material fall area, high-pressure jet device, the first material collecting tank and the second material collecting tank; Described building waste material fall area comprises the first fall trajectory, the second fall trajectory track.
Preferably, described XRF checkout gear, its front end pointing to conveyer belt is provided with mylar dustproof sheet, plays dust-proof effect.
Preferably, described conveyer belt, its width both sides are respectively equipped with the baffle plate for preventing building waste material from dropping.
Preferably, the bandwidth of described conveyer belt is 1.0 ~ 2.0m.
Preferably, the transporting velocity of conveyer belt controls to be 1.5 ~ 3.0m/s.
The course of work of the device of the utility model XRF on-line checkingi sorting building waste is as follows:
Vibrating material feeding device receives the building waste material after preceding working procedure process, as density, size, color, the discarded concrete that shape etc. are close and waste bricks, it is even, regularly, be supplied to feed chute continuously, building waste material is arranged on conveyer belt by feed chute, building waste material is arranged along conveyer belt width uniform intervals, and arrange along the length direction uniform intervals of conveyer belt, when building waste material on conveyer belt enters detection zone, the row building waste material of XRF checkout gear to laterally arrangement detects simultaneously, detect the fluorescent X-ray intensity of predetermined comparison element in each building waste material, master control set receives the detection data of XRF checkout gear, judge whether to exist in this row building waste material to select material, when judging that material is selected in existence, control high-pressure jet device is selected the time service that the jet thrust corresponding to material is being determined with this, this is selected material and push the second fall trajectory from its place first fall trajectory, allow select and expect to fall into the second material collecting tank along its second fall trajectory, the building waste material that other are not selected falls into the first material collecting tank along its first fall trajectory, thus realize density, size, color, the building waste material that shape etc. are close carries out quick online detection sorting.
The course of work of XRF checkout gear is as follows: X-ray tube is launched X-ray and beaten on building waste material, the fluorescent X-ray produced is received by silicon drifting detector, silicon drifting detector exports corresponding pulse signal after receiving the fluorescent X-ray that building waste material produces, pulse signal is exaggerated after device amplifies and converts data signal to by multichannel analyzer again, and each pulse in measurement category is recorded in corresponding road by the difference of range value by multichannel analyzer; Master control set is connected with multichannel analyzer, the umber of pulse of adding up respectively by impulse amplitude size is analyzed, by obtaining the fluorescent X-ray intensity of tested material predetermined comparison element to the energy of different fluorescent X-ray and the Automated generalization of counting rate, make comparisons with the fluorescent X-ray strength ratio of the standard sample predetermined comparison element stored, whether be greater than pre-set threshold according to their ratio and judge that whether building waste material is for selecting material.X-ray tube adopts chromium plate target; Detector adopts Resolution Si drift X-ray detector, its refrigeration adopts Peltier conductor refrigeration mode, ensure to detect data precision and instrument normal operating conditions, silicon drifting detector is set as adjustable simultaneously, the distance of detector and tested material is regulated in advance according to the magnitude range of tested material, distance range 20 ~ 80mm, determines that best distance is to guarantee the Detection results of XRF; Multichannel analyzer is the multichannel pulse scope-analyzer based on high-speed dsp digital signal processor, ensures that institute obtains accurately efficiently processing of signal.
The course of work of jet thrust is as follows: the position that each jet thrust detects according to building waste material, work in predetermined time, jet pressure is determined according to building waste material size, the duration that each jet thrust is jet and the time interval synchronous with the time cycle that material is selected in detection.
Determine that the method for the time that jet thrust is jet and jet pressure is as follows: when the power spectrum that XRF checkout gear detects is higher than default background threshold level, then illustrate that tested material enters detection range, the time moving to place jet thrust by calculating position when tested material has just entered detection range to it determines the time that jet thrust is jet; After tested material enters detection range, detect and obtain its power spectrum, until detected power spectrum is not higher than default background threshold level, estimate that (detector is used for detecting the leading edge of tested material and trailing edge for the length of tested material by the power spectrum of change, pass through the length that obtained information estimates tested material), regard tested material as cube, according to estimating that the length of tested material obtains its volume, the density of known tested material, volume is multiplied by the weight that density obtains tested material; The air pressure of jet thrust ejection is regulated, in the time determined to the jet sorting of tested material according to the weight of tested material.
The device adaptability of the utility model XRF on-line checkingi sorting building waste is good, sorting efficiency and accuracy high, achieve and the quick online detection of the close different material building waste material such as density, size, color, shape is sorted, solve the problem that prior art is difficult to its sorting; After device sorting simultaneously by the utility model XRF on-line checkingi sorting building waste, building waste after separation can be recycled separately, not only meet the market demand and improve the performance of enterprises, and better realizing the resource recycling of building waste.
The utility model also has following features:
1, prior art is just by different material building waste mixed collection close to density, size, color, shape etc., does not carry out meticulous sorting.By this device, this building waste mixed material is sorted, after treatment they are individually recycled.
2, different from existing building waste sorting equipment, the utility model is the device of XRF on-line checkingi sorting building waste, the fluorescent X-ray intensity being detected building waste predetermined comparison element by XRF device realizes on-line checkingi sorting, and sorting accurately, efficiently.
3, regulate the distance of silicon drifting detector in XRF checkout gear and tested material according to the large I of material in advance, determine that best distance is to guarantee Detection results.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection domain of the present utility model with this.
The utility model specific embodiment is as follows:
In the present embodiment, tested building waste material is the mixed material of discarded concrete and waste bricks; Discarded concrete the most at last in combination construction rubbish material and waste bricks sort and collect respectively.
As shown in Figure 1, a device for XRF on-line checkingi sorting building waste, comprising: XRF checkout gear 4, vibrating material feeding device 1, conveying device 2, high-pressure jet device 6, master control set, the first material collecting tank 8, second material collecting tank 9, perpendicular put demarcation strip 7, frame 3, casing 5;
Described vibrating material feeding device 1 (oscillating feeder), for providing the mixed material of discarded concrete and waste bricks to conveying device 2;
Described conveying device 2, for discarded concrete and waste bricks being conducted through the detection zone of XRF checkout gear 4, discarded concrete and waste bricks depart from and free-falling (dishing out at a predetermined velocity) at a predetermined velocity the most at last;
Described conveying device 2 comprises: feed chute 21, conveyer belt 22, blow tank 24, and drives conveyer belt 22 from feed chute 21 to the drive unit of blow tank 24 movement;
Described feed chute 21, its length direction is arranged along the width of conveyer belt 22; Described feed chute 21 is provided with: for receive vibrating material feeding device 1 export the feeding end of discarded concrete and waste bricks mixed material and some blanking ports for exporting single discarded concrete or waste bricks to conveyer belt 22; Each blanking port is positioned at the below of feeding end, and each blanking port along conveyer belt 22 width uniformly at intervals;
Described blow tank 24, its length direction is arranged along the width of conveyer belt 22; Described blow tank 24 is provided with some material casting passages; The two ends of single material casting passage are respectively: for receiving the feeding end of single discarded concrete or waste bricks on conveyer belt 22, and by discharge end that this single discarded concrete or waste bricks outwards export; Single material casting passage, its discharge end is positioned at the below of feeding end; The feeding end of each material casting passage is uniform along the width of conveyer belt 22, and the blanking port one_to_one corresponding of feeding end and feed chute 21, and feeding end receives the single discarded concrete or waste bricks that corresponding blanking port exports; The discharge end of each material casting passage is uniform along the width of conveyer belt 22, corresponding first fall trajectory of each discharge end, and this first fall trajectory exports by corresponding discharge end the track of discarded concrete or waste bricks free-falling;
Described XRF checkout gear 4, the discarded concrete and waste bricks that enter detection zone are detected, detect the fluorescent X-ray intensity of predetermined comparison element in discarded concrete or waste bricks (Ca and Fe element), export corresponding detection data to master control set, this detection packet is containing the fluorescent X-ray intensity data of predetermined comparison element in above-mentioned discarded concrete or waste bricks;
Described XRF checkout gear 4 is positioned at directly over conveyer belt 22, and it comprises: multichannel analyzer, amplifier, X-ray tube, and the silicon drifting detector of some sensing conveyer belts 22; Described X-ray tube, for launching X-ray to the discarded concrete of detection zone and waste bricks; Each silicon drifting detector is uniform along the width of conveyer belt 22, and the blanking port one_to_one corresponding of silicon drifting detector and feed chute 21; Described silicon drifting detector gather corresponding blanking port export the fluorescent X-ray of single discarded concrete or waste bricks, and corresponding output pulse signal; Described amplifier, amplifies the pulse signal that silicon drifting detector exports and is delivered to multichannel analyzer; Described multichannel analyzer, processes the pulse signal after amplifier amplifies, generates and detect data, and detection data are sent to master control set;
Described master control set, receive the detection data of XRF checkout gear 4, it is compared with pre-stored criteria sample (concrete) data, to judge that whether building waste material corresponding to each silicon drifting detector is for selecting material (discarded concrete), when judging the building waste material corresponding to certain silicon drifting detector for selecting material (discarded concrete), controlling high-pressure jet device 6 and selecting material (discarded concrete) place first fall trajectory inject high pressure gas to this;
Described high-pressure jet device 6 is positioned at below the blow tank 24 of conveying device 2, and it comprises the jet thrust of some inject high pressure gas under master control set controls; Each jet thrust is uniform along the width of conveyer belt 22; And the discharge end one_to_one corresponding of jet thrust and blow tank 24, single jet thrust point to corresponding blow tank 24 export the first fall trajectory of single discarded concrete or waste bricks free-falling, this single jet thrust is inject high pressure gas under master control set controls, and will select material (discarded concrete) and push the second fall trajectory from its place first fall trajectory; The track of described first fall trajectory to be discarded concrete or waste bricks from conveying device 2 depart from (dishing out) free-falling afterwards; Described second fall trajectory be on the first fall trajectory select material (discarded concrete) sprayed by high-pressure jet after the movement locus of (again free-falling);
Described first material collecting tank 8, collects the waste bricks falling to the first fall trajectory end; Described first material collecting tank 8 is positioned at below the blow tank 24 of conveying device 2, and its length direction is arranged along the width of conveyer belt 22; The end of each first fall trajectory is positioned at the first material collecting tank 8;
Described second material collecting tank 9, collect fall to the second fall trajectory end select material (discarded concrete); Described second material collecting tank 9 is positioned at below the blow tank 24 of conveying device 2, and its length direction is arranged along the width of conveyer belt 22; The end of each second fall trajectory is positioned at the second material collecting tank 9;
Described erecting puts demarcation strip 7, and for isolating the first material collecting tank 8, second material collecting tank 9, the length direction of this demarcation strip 7 is arranged along the width of conveyer belt 22;
Described frame 3, for supporting XRF checkout gear 4, vibrating material feeding device 1, conveying device 2, high-pressure jet device 6;
Described casing 5, for covering building waste Material Sorting region, described building waste Material Sorting region comprises building waste material fall area, high-pressure jet device 6, first material collecting tank 8 and the second material collecting tank 9; Described building waste material fall area comprises the first fall trajectory, the second fall trajectory track.
Each jet thrust of described high-pressure jet device 6 is furnished with appendix respectively, jet thrust connects gases at high pressure generating means by corresponding appendix, each appendix is all provided with magnetic valve, and each magnetic valve connects master control set, and master control set is jet by the corresponding jet thrust of solenoid control.
Described XRF checkout gear 4, its front end pointing to conveyer belt is also provided with mylar dustproof sheet, plays dust-proof effect.
Described conveyer belt 22, its width both sides are also respectively equipped with the baffle plate 23 for preventing building waste material from dropping.
The bandwidth of described conveyer belt 22 is 1.0 ~ 2.0m, and the transporting velocity of conveyer belt 22 controls to be 1.5 ~ 3.0m/s.
The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. a device for XRF on-line checkingi sorting building waste, is characterized in that, comprising: XRF checkout gear, vibrating material feeding device, conveying device, high-pressure jet device, master control set, the first material collecting tank, the second material collecting tank;
Described XRF checkout gear, detects the building waste material entering detection zone, detects the fluorescent X-ray intensity of predetermined comparison element in building waste material, exports corresponding detection data to master control set;
Described vibrating material feeding device, for providing building waste material to conveying device;
Described conveying device, for by the detection zone of building waste mass transport by XRF checkout gear, finally makes building waste material depart from a predetermined velocity and free-falling;
Described high-pressure jet device, control by master control set, to the building waste material inject high pressure gas on the first fall trajectory, building waste material is pushed the second fall trajectory from the first fall trajectory, described first fall trajectory is the track of free-falling after building waste material departs from from conveying device, and described second fall trajectory is the movement locus after the building waste material on the first fall trajectory is sprayed by high-pressure jet;
Described master control set, receive the detection data exported described in XRF checkout gear, it is compared with pre-stored criteria sample data, to judge that whether building waste material corresponding to these detection data is for selecting material, when judging building waste material for selecting material, controlling high-pressure jet device and selecting the first fall trajectory inject high pressure gas of material to this in the given time;
Described first material collecting tank, collects the building waste material falling to the first fall trajectory end;
Described second material collecting tank, collect fall to the second fall trajectory end select material.
2. the device of a kind of XRF on-line checkingi sorting building waste according to claim 1, it is characterized in that, described conveying device comprises: feed chute, conveyer belt, blow tank, and drives conveyer belt from feed chute to the drive unit of blow tank movement;
Described feed chute, its length direction is arranged along the width of conveyer belt; Described feed chute is provided with: for receive vibrating material feeding device export the feeding end of building waste material and some blanking ports for exporting single building waste material to conveyer belt; Each blanking port is positioned at the below of feeding end, and each blanking port along conveyer belt width uniformly at intervals;
Described blow tank, its length direction is arranged along the width of conveyer belt; Described blow tank is provided with some material casting passages; The two ends of single material casting passage are respectively: for receiving the feeding end of single building waste material on conveyer belt, and by discharge end that this single building waste material outwards exports; Single material casting passage, its discharge end is positioned at the below of feeding end; The feeding end of each material casting passage is uniform along the width of conveyer belt, and the blanking port one_to_one corresponding of feeding end and feed chute, feeding end receives the single building waste material that corresponding blanking port exports; The discharge end of each material casting passage is uniform along the width of conveyer belt, corresponding first fall trajectory of each discharge end, and this first fall trajectory exports by corresponding discharge end the track of building waste material free-falling;
Described XRF checkout gear is positioned at directly over conveyer belt, and it comprises: multichannel analyzer, amplifier, X-ray tube, and the silicon drifting detector of some sensing conveyer belts; Described X-ray tube, launches X-ray for the building waste material to detection zone; Each silicon drifting detector is uniform along the width of conveyer belt, and the blanking port one_to_one corresponding of silicon drifting detector and feed chute; Described silicon drifting detector gather corresponding blanking port export the fluorescent X-ray of single building waste material, and corresponding output pulse signal; Described amplifier, amplifies the pulse signal that silicon drifting detector exports and is delivered to multichannel analyzer; Described multichannel analyzer, processes the pulse signal after amplifier amplifies, generates and detect data, and detection data are sent to master control set;
Described master control set, receive the detection data of XRF checkout gear, it is compared with pre-stored criteria sample data, to judge that whether building waste material corresponding to each silicon drifting detector is for selecting material, when judging the building waste material corresponding to certain silicon drifting detector for selecting material, controlling high-pressure jet device and selecting material place first fall trajectory inject high pressure gas to this;
Described high-pressure jet device is positioned at below the blow tank of conveying device, and it comprises the jet thrust of some inject high pressure gas under master control set controls; Each jet thrust is uniform along the width of conveyer belt; And the discharge end one_to_one corresponding of jet thrust and blow tank, single jet thrust point to corresponding blow tank export the first fall trajectory of single building waste material free-falling, this single jet thrust is inject high pressure gas under master control set controls, and this single building waste material is pushed the second fall trajectory from its place first fall trajectory;
Described first material collecting tank is positioned at below the blow tank of conveying device, and its length direction is arranged along the width of conveyer belt; The end of each first fall trajectory is positioned at the first material collecting tank;
Described second material collecting tank is positioned at below the blow tank of conveying device, and its length direction is arranged along the width of conveyer belt; The end of each second fall trajectory is positioned at the second material collecting tank.
3. the device of a kind of XRF on-line checkingi sorting building waste according to claim 2, it is characterized in that, each jet thrust of described high-pressure jet device is furnished with appendix respectively, jet thrust connects gases at high pressure generating means by corresponding appendix, each appendix is all provided with magnetic valve, each magnetic valve connects master control set, and master control set is jet by the corresponding jet thrust of solenoid control.
4. the device of a kind of XRF on-line checkingi sorting building waste according to claim 3, it is characterized in that, also comprise for isolating the first material collecting tank, the perpendicular of the second material collecting tank puts demarcation strip, the length direction of this demarcation strip is arranged along the width of conveyer belt.
5. the device of a kind of XRF on-line checkingi sorting building waste according to claim 4, is characterized in that, also comprising the frame for supporting XRF checkout gear, vibrating material feeding device, conveying device, high-pressure jet device.
6. the device of a kind of XRF on-line checkingi sorting building waste according to claim 5, it is characterized in that, also comprise the casing for covering building waste Material Sorting region, described building waste Material Sorting region comprises building waste material fall area, high-pressure jet device, the first material collecting tank and the second material collecting tank; Described building waste material fall area comprises the first fall trajectory, the second fall trajectory track.
7. the device of a kind of XRF on-line checkingi sorting building waste according to claim 6, it is characterized in that, described XRF checkout gear, its front end pointing to conveyer belt is provided with mylar dustproof sheet.
8. the device of a kind of XRF on-line checkingi sorting building waste according to claim 7, it is characterized in that, described conveyer belt, its width both sides are respectively equipped with the baffle plate for preventing building waste material from dropping.
9. the device of a kind of XRF on-line checkingi sorting building waste according to claim 8, it is characterized in that, the bandwidth of described conveyer belt is 1.0 ~ 2.0m.
10. the device of a kind of XRF on-line checkingi sorting building waste according to claim 9, it is characterized in that, the transporting velocity of described conveyer belt controls to be 1.5 ~ 3.0m/s.
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