59 results about "Stock level" patented technology

A consignor and a retailer develop a consignment agreement for a consigned product. An inventory order is generated for stocking levels of the consigned product in a retailer's distribution system. An inventory quantity of the consigned product based on the inventory order is shipped out to the retailer's distribution system. A virtual inventory is created in a consignor's computer system to match the inventory quantity shipped to the retailer's distribution system and also that identifies the inventory location. A consignor's computer system receives sales data for the consigned product. The retailer's distribution system is replenished based on the sales data. The virtual inventory in the consignor's computer system is decremented based on the sales data received.

The disclosure is related to a method and a system for estimating a stock level of a shelf. An image processing technique is incorporated to conduct stock estimation that is used as a reference for replenishment decisions. In the method, a camera is used to capture a shelf image. The shelf image is divided into multiple sub-region images. Multiple binarized images with respect to the multiple sub-region images are obtained by applying a binarization method. A ratio of the binarization values with respect to the pixels within every sub-region is calculated. The method also includes comparing the ratio of the binarization values in at least two sub-regions with a reference ratio in the at least two sub-regions within a shelf reference image. The comparison is used to estimate the stock level, and also to determine whether the shelf is to be replenished.

The invention relates to a runoff long-bag low-pressure pulse bag type dust collector. At present, a blowing pulse dust collector has the defect that a filter bag has the troublesome process of check and replacement and is easy to interfere by weather factors, the defect that the service life of the filter bag is shortened due to the extraordinary strong scour of high-pressure airflow on the filter bag, the defect that a chimney flue is not closed completely due to expansion caused by heat and contraction caused by cold in equipment, and other defects. The bag type dust collector comprises a group of single bag type dust collectors and a controller thereof, wherein the controller comprises a personal computer (PC) cabinet (25); the PC cabinet is respectively connected with an industrial control computer (26), a programmed logic controller (27), a motor control center (28), a field control case (29), a temperature sensor (44) arranged on an inlet chimney flue of each single bag type dust collector, a stock-level sensor (45) arranged on a dust collecting hopper of each single bag type dust collector and a differential pressure sensor (22) arranged on an air-purifying chamber shell and a dust air chamber shell; and the single bag type dust collectors are arranged in a parallel connection structure. The runoff long-bag low-pressure pulse bag type dust collector is used for managing smoke dust in coal-fired boilers.

The invention discloses a method for quantitative stock level-lowering and blowing out of a blast furnace and belongs to the technical field of blast furnace iron making. The process of blowing out comprises a normal material stage and a coke stage; the normal material stage further comprises an early period and a later period during which normal materials are in the furnace; the coke stage further comprises an early period during which there is only coke in the furnace and the stock level is at the lower part of the furnace stack, a middle period during which there is only coke in the furnace and the stock level is at the furnace belly, a later period during which there is only coke in the furnace and the stock level is at the upper part of the furnace bosh or the furnace crucible, so that key tasks and quantitative principles at stages of the process of stock level-lowering and blowing out can be made clear. The method is to focus on initiative control over air quantities at different stock level-lowering stages and also give consideration to specific conditions for the stock level-lowering and blowing out of the blast furnace so as to quantify the stock level-lowering and blowing-out technology and detail all the parameters in the stock level-lowering and blowing out processes. Practice proves that the actual parameters in the stock level-lowering and blowing out processes are as planed and the stock level-lowering process is safe, efficient and environmentally-friendly.

A computer implemented method for optimizing automobile dealer inventory includes determining at least one future purchase intention metric for a catchment area in which a dealer is located, determining expected future retail sales of a vehicle type based on the determined future purchase intention metric, comparing the expected future retail sales of the vehicle type to an expected inventory of the vehicle type for at least one time period, and outputting a recommended adjustment to at least one of a current inventory of the vehicle type and an on-order inventory of the vehicle type, thereby ensuring that a more desirable stock level is maintained for the at least one time period.

The invention relates to a method for blowing out a blast furnace. The method comprises the following steps of: continuously adding iron ore and a solid carbonaceous substance into a blast furnace before blown out so that the height from a stock level to the horizontal plane of an iron notch is 86-93 percent of total eight of the blast furnace; when the adding volume of mixed materials is 65-75 percent of the total volume in the blast furnace, stopping adding the mixed materials; then leading the height from the stock level to the horizontal plane of the iron notch to be 45-65 percent of the total eight of the blast furnace by an empty stock level, spraying water into the blast furnace and predamping down; then continuously spraying water into the blast furnace and blowing air the blast furnace so that the stock level is reduced; when at least one of the following three conditions is met, opening the iron notch for tapping and then opening a residual iron notch for discharging slag iron; (1) calculating that the stock level depth reaches the horizontal plane of an air opening by the air blowing amount; (2) generating a second peak value of CO2 content in a change curve of the CO2 content; and (3) turning the combustion flame of the air opening to be yellow green. By adopting the method for blowing out a blast furnace, the probability for reducing the stock level in the blast furnace below the horizontal plane of the air opening after blowing out is as high as more than 90 percent.

The invention discloses a quantitative modularized method for accurately controlling blow-in, banking and blow-out of a blast furnace. The blow-in method comprises the following steps: burdening, feeding calculation, charging for the blast furnace, adjustment of charging, feed-in calculation and blow-in control. The banking method comprises the following steps: canceling limestone, dolomite and silica in claims 1 to 6, adjusting a total coke ratio and a total alkalinity according to the banking time, stably descending furnace burden, and when the calculated furnace burden is fed into the furnace, and the burden line is about 6 cm of the stock level, damping down so as to finish banking. The blow-out method comprises the following steps: after furnace burden feeding is stopped, calculating the burning coke quantity based on feed-in air quantity of the blast furnace, when the volume vacated in the furnace is up to the predetermined cleared amount, combining with outer furnace observation and determination, and damping down so as to finish blow-out. The quantitative modularized method is based on the principles of local material balance of each part in the blast furnace, full-furnace material balance and thermal balance, solves the problems that the associated data such as the total coke ratio, the alkalinity balance at the filled part, final slag constituents, cast iron composition control, empty burden batches and normal burden batches are processed in an interacted manner, and has the characteristics of simplicity in method, and quickness and accuracy in control.

The invention relates to a sounding rod debugging device for determining a datum point of a blast-furnace charge level and a debugging and positioning method of the device and belongs to the technical field of blast-furnace sounding rod measurement. According to the technical scheme, the sounding rod debugging device comprises a sounding rod head (5), absolute value encoders (9), a motor (11), a roller (12), a mooring rope (1), a ball valve (3) and a blast-furnace pipeline (4), wherein the ball valve is arranged on the blast-furnace pipeline; the output of the motor is connected with the roller; one end of the mooring rope is wound on the roller, and the other end of the mooring rope penetrates through the blast-furnace pipeline and the ball valve to enter the blast furnace and is connected with the sounding rod head; the absolute value encoders are arranged on the motor and the roller shaft. The sounding rod debugging device has the positive effects that the datum point of a sounding rod does not required to be corrected during blast-furnace blowing-down, the sounding rod can be debugged during normal production, manual visual inspection is not required during determining and debugging, the stock level is accurately detected, the datum point of the charge level can be corrected when the stock level cannot be determined in a production process, the blowing-down is not required in the process of replacing the sounding rod head, the debugging is convenient and simple and is not limited by the blanking time, and the labor intensity is reduced.

The invention relates to a method for detecting the dynamic stock level in a stock bin limit position in an image processing manner based on a digital camera and an auxiliary lighting device. By shooting images of a stock bin and processing the images in real time, the real time monitoring of the dynamic stock level is completed, and an ultralimit alarm for the stock level is realized. By analyzing the characteristics of the stock bin limit position images and adopting the characteristics of particular images extracted in the image processing manner as a basis, the dynamic stock level near the stock bin limit position corresponds to three working states including a detection state, a monitoring state and an alarm state, the ultralimit alarm for the stock level is realized, and the method has the characteristics of good real time performance and high reliability. The method is especially applicable to occasions having safety enforcement requirements for the stock level in the stock bin limit position, such as underground coal bins in coal mines.

The invention discloses a traditional Chinese medicine cataplasma forming device with automatic detection function. The device comprises: a storage silo, a transverse feeding medicine film forming pump, a patch composite molding device, a patch longitudinal trimming device, a patch transverse cutting device, a patch dehumidifying device, a weighing device and an automatic online detection device based on FPGA (Field Programmable Gate Array) fuzzy pattern recognition, wherein the patch longitudinal trimming device is formed by a combined cutting tool magazine; the patch transverse cutting device adopts an electrostatic adsorption quantitative feeding structure; and the automatic online detection device based on FPGA comprises a plurality of cameras respectively used for stock level detection, coating film detection and cloth substrate detection, a camera and a backlight used for detection of uniformity degree, a photoelectric detector used for transverse feeding detection, a video A/D (Analog to Digital) converter ADV7181B, an SDRAM (Synchronous Dynamic random access memory) cache with the capacity of 16M, and a programmable logic device FPGA. The traditional Chinese medicine cataplasma forming device can monitor the humiture of materials and the indexes such as uniformity, size, dehumidification, weight and the like of auxiliary materials and patches.

The invention provides a power distribution network equipment demand prediction and quantitative method and system. Based on history demand condition, current equipment amount, equipment reliability and equipment running climatic environment factor quantized data of the power distribution network equipment, demand per month of distribution network repair materials is predicted by an SVM (support vector machine). According to fund occupation condition of the power distribution network to the equipment, the power distribution network equipment is divided into core equipment and important equipment by the aid of the primary and secondary analytic method, and spare part safe stock and target stock levels of the power distribution network equipment are determined in the phase review way and the fixed order batch way, thus the power distribution network equipment is quantified. The quantitative data is more accurate and reliable and applicable to power distribution network material reserve quantity determination process, in this way, overstocked products are reduced, and material reserve efficiency and duration is improved, so that safety and economy of the power grid production are guaranteed, and utilization rate is enhanced.

The present disclosure provides an inventory management system that offers significant improvement over existing systems by automating requests to restock inventory. The present disclosure details an inventory management system that provides real time visibility to stock levels and streamlines materials management activities, while addressing the issues of human resource misallocations, inaccurate inventory data management and related out of stock conditions. Moreover, the system of the present disclosure promotes a high level of confidence in inventory data that enables on-hand inventory levels to be reduced, thereby reducing costs and waste.

The invention discloses castable for gun patching of a blast furnace lining and a preparation method for the castable. The castable is prepared from raw materials, i.e., 10wt% to 15wt% of bauxite particles, 40wt% to 50wt% of brown fused alumina particles, 10wt% to 20wt% of silicon carbide fine powder, 15wt% to 25wt% of corundum fine powder, 0.5wt% to 2wt% of metal silicon powder, 0.5wt% to 2wt% of pelleted pitch, 2wt% to 7wt% of alpha-Al2O3 micropowder and 0.2wt% to 2wt% of silica micropowder, and silica sol, of which the weight percentage is 8% to 15% that of the raw materials, wherein the silica sol serves as a binder. The method comprises the steps of proportionally preparing the raw materials, adding the raw materials in a stirrer, carrying out uniform stirring and mixing, and then, adding the silica sol as a gun patching wetting medium and the binder, thereby obtaining the castable for gun patching of the blast furnace lining. The castable is superior in slag resistance, high in strength, good in bonding performance and quick in construction and can be integrated with a patched face of the blast furnace lining through binding; and the preparation method is simple in operation, exposed furnace wall linings can be subjected to gun-patching lining forming under the circumstances that a stock level of a blast furnace is lowered, and the blast furnace lining is rapidly patched in a large area.

The invention discloses a method for rapidly recovering the furnace condition after long-time blowing-down of a blast furnace. The method comprises steps as follows: 1), blowing-down is started when a blowing-down material downwards reaches the lower edge of a furnace bosh, the stock level is 1.2m-1.5m during blowing down, and reblowing is performed after blowing-down is performed for 8-36 hours; 2), all tuyeres are opened for reblowing, coal gas is introduced for 8-10 minutes, then, the blowing rate reaches 3,200-4,000 m<3>/min, the ore batch before blowing-down is kept unchanged in the reblowing process; 3), coke load is started to be increased after the blowing rate reaches 3,200-4,000 m<3>/min, and the smelting level is adjusted to be normal after 8 hours; and 4), the iron opening time is firstly calculated according to the blast consumption of per ton of iron at 1,300 m<3>/t*Fe after reblowing, opening for iron discharging is performed after the air volume is added up to 260,000m<3>, iron slag can be firstly pelletized, and fire slag is not discharged. According to the method, the air adding speed is high, and the time is only 6.25% of original time; the load adjustment period is short, and time is shortened by 2/3; and the labor intensity of workers is greatly reduced, and occupational hazards such as high temperature, noise and the like are avoided.

The invention provides a method and a device for controlling an induced draft temperature of a grate cooler of a cement afterheat generation system. The method comprises the step of controlling afterheat using air valve opening, the afterwind valve opening, a rotating speed of a first main transmission shaft and a rotating speed of a second main transmission shaft in the grate cooler by using a controller. The device comprises the grate cooler, a first drive mechanism and a second drive mechanism which are connected with the grate cooler, an afterheat using mechanism and an afterwind emission mechanism, wherein the grate cooler, the afterheat using mechanism and the afterwind emission mechanism are arranged on the grate cooler. The grate cooler is provided with at least two stock level detectors; the first drive mechanism, the second drive mechanism, the afterheat using mechanism, the afterwind emission mechanism and the stock level detectors detector are respectively connected with the controller; and the controller is provided with a signal input end, a signal analysis processing unit and a signal output end, which are sequentially connected. The control device can effectively reduce the fluctuation of the induced draft temperature of grate cooler afterheat, and the induced draft temperature is ensured to keep within a certain range, so that the induced draft temperature of the cement afterheat generating system is maintained at a higher level.

The invention provides a forecasting method for the descending depth of a material surface of a blast furnace during furnace shutting down. The method comprises the following steps of: forecasting the material surface depth at a regular preset time unit during the descending operation of the material surface of the blast furnace, in particular, computing the ton coke air loss according to the cold air blast flow and the coke consumption quantity on the latest normal smelting day before the blast furnace is shut down, taking the ton coke air loss as the ton coke air loss during descending operation of the material surface of the blast furnace, computing the air quantity at the current time according to the ton coke air loss, and carrying out the amortized computation on the air quantity at the current time based on the air pressure P0 and the air temperature T0 at the latest normal smelting day before the blast furnace is shut down; computing the coke burning quantity and the furnace burden consuming space at the current time; computing the accumulated value of the furnace burden space at the current time; computing the stock level data at the current time through the accumulated value of the furnace burden space at the current time by utilizing the linear relationship between the accumulated value of the furnace burden space and the stock level data; computing the descending speed of the material surface; and computing the required remaining time when an expected furnace shutting down time is reached.

The invention discloses a device and a method for measuring solid circulation flow rate, which relate to the solid transmission technology. The device for measuring solid circulation flow rate is composed of components, such as a valve, a high-low stock level switch, a timing device, a material measuring section, a balance pipe and the like. The position of the material is detected through the high-low stock level switch, a signal is transmitted to the timing device, and the material accumulation time is displayed, so that manual timing error is avoided, and measurement accuracy is improved greatly. The material measuring section of the device provided by the invention can be obtained by directly selecting one section of a dip leg, and the device is simple in structure and convenient to operate. With the balance pipe, the interference of the measuring process on the system operation can be reduced, and the device for measuring solid circulation flow rate is especially suitable for measuring the solid circulation flow rate of the devices with high solid circulation flow rate, and also can be used for measuring the solid circulation flow rate under a pressurization condition.

The invention relates to a control method of a sounding rod to follow up a charge level. An AC (alternating current) frequency converter is controlled to complete the discharge of the sounding rod, follow up the charge level and lift up the sounding rod, and a PLC (programmable logic controller) makes an instruction, and is communicated with a frequency converter to send out a measurement starting command to the frequency converter, and the actual rotation speed of an increment type encoder measuring motor. The method comprises the following steps that (1) when the material is distributed on the top of a furnace, the PLC controller sends out the start command to the frequency converter; (2) the frequency converter runs, the sounding rod is opened, and the sounding rod lifts down at a constant control mode; and (3) the frequency converter monitors the motor torque and the torque mutation, the frequency converter judges that the sounding rod has reached the charge level, the sounding rod is slightly and upwards lift up, and the sounding rod is discharged till reaching to a stock level. According to the technical scheme, the passive follow-up mode is changed into an active mode, the sounding rod carries out the spot measurement of the charge level at a tinny amplitude after reaching the charge level, the running status of the sounding rod is completely controlled by the frequency converter, the tightness of a chain can be kept, and the burying of the sounding rod caused by the collapsed material can be avoided.

Disclosed is a sensor shield (6, 6a, 6b) for use in a multi-shelf merchandise display unit (1) including a plurality of sensors (5, 5a, 5b) mounted on a wall (4) of the unit (1) and opposite a source of illumination (2), in which each sensor (5, 5a, 5b) corresponds to a single shelf (3, 3a, 3b) and in which the shelves (3, 3a, 3b) are at least semi-porous to the illumination. The shield (6, 6a, 6b) comprises i) a plate having a length that is sufficient substantially to reduce or prevent incident illumination from the shelf (3, 3a, 3b) above reaching the sensor (5, 5a, 5b); and ii) means (26) n to attach the plate to casing of or around the sensor (5, 5a, 5b) or the wall (4) of the unit (1). The plate is opaque to the illumination detected by the sensor (5, 5a, 5b). Also disclosed is a method to reduce the interference of light in a multi-shelf merchandise display unit (1) from shelves (3, 3a, 3b) above a shelf (3, 3a, 3b) on which stock levels are being measured and a method for monitoring stock levels in a retail display cabinet by measuring light entering the retail display cabinet.

A stock system which includes a stock management apparatus. The apparatus has an input device, a memory, an output device and a processor. The memory device includes a stock line data collection which relates to a stock line and has an identifier unique to the stock line, a cost item relating to the cost incurred per stock item and a stock level item. The processor has query processing means for generating the required gross profit item for the stock line from a desired stockturn item, the desired mark-up item, the cost item and the stock level item for the stock line.