42results about How to "Solve the problem of flooding" patented technology

The invention discloses a domestic sewer pipe anti-blockage alarming device. The domestic sewer pipe anti-blockage alarming device comprises a water tank, a main water pipe, a branch water pipe, a blockage dredging water pipe, a blockage dredging branch water pipe, a flow sensor, a pressure sensor, a water valve, a controller and a domestic sewer pipe, wherein one end of the branch water pipe is connected with the main water pipe while the other end of the branch water pipe is connected with the blockage dredging branch water pipe; the domestic sewer pipe is connected with the branch water pipe; one end of the blockage dredging branch water pipe is connected with the blockage dredging water pipe while the other end of the blockage dredging branch water pipe is connected with the sewer pipe; the sensors are placed at various connectors; the water tank is placed on a roof or a water tank is placed in the house of every resident. The device is reasonable in structure and convenient to use; the blocked position of the sewer pipe can be found out in time and automatic blockage dredging can be realized; and the domestic sewer pipe anti-blockage alarming device brings convenience to family life.

The invention discloses an exploring method of a water liberation working surface of a water-enriched mine area, which comprises the following steps of: 1. determining a water-enriched layer and selecting a coal layer where a liberation working surface is located; 2. determining basic exploration parameters of the liberation working surface according to water inflow basic data of mine wells; 3. constructing a drainage system; 4. exploring the liberation working surface and synchronously draining: fully caving a top plate of the working surface in the exploration process of the liberation working surface to form a top plate fissure zone, correspondingly forming a water guiding channel between a gob and the water-enriched layer, and discharging the water in the water-enriched layer through the water guiding channel, a smooth groove of the working surface and the draining system; and synchronously observing the water inflow in the water-enriched layer and correspondingly determining the lasting time for exploration of the liberation working surface until the flood problem is solved; and 5. normally exploring the coal layer of the explored mining area. The invention has the advantagesof reasonable design, convenience of construction, low input cost, good effect and wide popularization prospect and can radically solve the flood problem in the production process of the water-enriched mining area from the headstream.

The present application provides a multicast method and VTEP equipment, which relate to the technical field of data communication and are used to solve the problem of flooding of multicast traffic in a VXLAN network. The method includes: the local VTEP receives the first VXLAN message sent by the remote VTEP; wherein, the first VXLAN message includes: the address of the remote VTEP, the target virtual extended local area network identifier VNI, and the target virtual local area network VLAN identification, and a multicast join message; the multicast join message includes the address of the target multicast group; the local VTEP creates a target multicast forwarding table according to the first VXLAN message, and the remote VTEP The address of the target multicast forwarding table is added to the replication table of the target multicast forwarding table; the target multicast forwarding table is used to make the local VTEP forward the multicast message of the target multicast group to the remote VTEP . This application is applicable to the process of VTEP forwarding multicast packets.

The invention provides a process method for separating quartz sand, arkosic sand and iron powder from river yellow sand. The method mainly comprises the following process steps of (1), performing desliming, grading and sheet mica removing; (2), removing iron through magnetic separation and gravity separation; (3), removing an oxidized skin through alkaline wash; (4) performing acid neutralization and removing the iron; (5) separating the quartz sand from the arkosic sand through flotation separation; (6) removing the iron through water wash, the magnetic separation and the gravity separation; (7) removing variegated pellets through photoelectric separation; (8) recycling fine iron powder made of iron. The quartz sand produced by the process method is high in purity, wherein the content of SiO2 is 98.0-99.0%, and the content of Fe2O3 is 0.009-0.015%. The produced arkosic sand can serve as materials of ordinary glass and ordinary ceramics. Metallics obtained through the magnetic separation and the gravity separation can produce the fine iron powder with the grade larger than or equal to 66%. By means of the process method, yellow sand resources are fully utilized without any waste, and the whole production process does not discharge waste alkali and waste acid. Therefore, the process method is friendly to the environment.

The invention relates to a waterproof joint structure of a steel structure workshop. The waterproof joint structure comprises a flashing structure in the side span position. The flashing structure at least comprises angle covering plates provided with a flashing part and at least one fixed part. Lowest point water dropping levels extending downward are arranged on the flashing parts, the fixed parts are fixed to a wall body through a fixing mechanism. The positions, provided with gaps with a water seepage wall body, on the angle covering plates are bonded through sealing glue. According to the joint structure, the flashing problems of joints such as high and low spans and inner gutters are better solved, compared with a leakage-proof structure of the prior art, the waterproof joint structure is more reasonable and better in effect.

The invention discloses a method for preparing hydrazine hydrate. The method comprises the following steps of adding benzophenone into a reactor, vacuumizing the reactor, introducing ammonia gas into the reactor continuously at the speed of 0.5L / min, introducing oxidant oxygen into the reactor at the speed of 2L / min at the same time, carrying out reaction for 8-12 hours at the temperature of 250 DEG C to produce benzophenone-linked nitrogen, dispersing polyoxyethylene and dodecylbenzene sulfonic acid into benzophenone-linked nitrogen, mixing uniformly, feeding the mixture into an atmospheric distillation tower, hydrolyzing to obtain a finished product which is hydrazine hydrate, and recovering benzophenone at the same time, wherein thorium oxide, ammonium chloride and cuprous chloride serve as catalysts. The environment-friendly pollution-free oxygen is used as the oxidant, the process is simple, is convenient to operate and solves the problem of flooding during the hydrolysis of linked nitrogen, and the prepared hydrazine hydrate is high in purity and low in cost and is worthy of popularization.

The invention provides an automatic vehicle height adjustment method and system, a storage medium and a vehicle. The automatic vehicle height adjustment method comprises the steps of detecting whetherthe vehicle is in a parking state, obtaining a water level and detecting whether the distance between the water level and a vehicle body bottom is less than or equal to a set distance if the vehicleis in the parking state, and controlling a vehicle body height of the vehicle to increase by a set height if the distance between the water level and the vehicle body bottom is less than or equal to the set distance. The automatic vehicle height adjustment method and system, the storage medium and the vehicle achieve the purpose of protecting the vehicle.

The embodiment of the invention provides a data communication method and network equipment. The method comprises the following steps: searching for an SAS list item which corresponds to a destination MAC address and a VLAN ID from an SAS database according to the destination MAC address and the VLAN ID of a message needing transmitting; if the SAS list item which corresponds to the destination MAC address and the VLAN ID is found out, traversing an RPR topological database to search for a destination site conforming to the SAS list item; and if the destination site conforming to the SAS list item is found out, transmitting the message to the destination site by a main MAC address. The data communication method and the network equipment provided by the embodiment can effectively solve the problem of probably flooding when RPR sites are communicated by a secondary MAC address so as to improve the bandwidth utilization.

The invention discloses an anti-blocking alarm device for household sewer pipes, comprising a water tank, a main water pipe, branch water pipes, a blockage-removing water pipe, a blockage-removing branch water pipe, a flow sensor, a pressure sensor, a water valve, a controller and a household sewer pipe; the branch water pipe One end of the pipe is connected to the main water pipe, the other end is connected to the branch water pipe for blockage removal, the household sewer pipe is connected to the branch water pipe, one end of the blockage branch water pipe is connected to the blockage discharge pipe, and the other end is connected to the sewer pipe; the sensor is placed at each connection port, The water tank is placed on the roof or a water tank is placed in each resident's home. The device has a reasonable structure, is convenient to use, can find out where the sewer pipe is blocked in time, and can automatically remove the blockage, which brings convenience to home life.

The invention discloses an environment-friendly toilet tool for a solid-liquid separation type environment-friendly toilet. The toilet tool comprises a toilet tool body; a drain outlet is formed in the lower end of one side of the toilet tool body; a pipeline is arranged at the lower end of the drain outlet; a rotating device is arranged on the inner side of the pipeline; a solid-liquid separationchamber is arranged at the lower end of the pipeline; a collecting chamber I is arranged at the bottom of the solid-liquid separation chamber; a collection chamber II is arranged at the lower end ofone side of the solid-liquid separation chamber; an extrusion device is arranged on one side in the solid-liquid separation chamber; a movable door is arranged at the lower end of the extrusion deviceand is positioned on the inner wall of the solid-liquid separation chamber; a telescopic device is arranged on the other side in the solid-liquid separation chamber; a plurality of through holes areformed in the bottom of the solid-liquid separation chamber; through the arrangement of the through hole, liquid in excreta flows into the collecting chamber I, a micro air cylinder is arranged on oneside of the upper end of the collecting chamber II, a scraping piece is arranged at the upper end of the micro air cylinder and located on one side of the solid-liquid separation chamber, the upper end of the scraping piece is of a triangular structure, the rotating device comprises a rotating block, and the rotating block is located on the inner side of the pipeline.

The invention discloses a method for reducing the content of ammonia nitrogen in urea process condensate. The method comprises the following steps: (1) introducing urea process condensate into a hydrolyzer for urea hydrolysis; (2) allowing a liquid phase obtained after urea hydrolysis to enter into an equilibrium distillation device through an outlet pipe of the hydrolyzer for equilibrium distillation; and (3) allowing a gas phase produced after equilibrium distillation to enter into an upper tower of a desorber or to be mixed with a gas phase product at the tower top of the desorber, allowing a liquid phase produced after equilibrium distillation to enter into the top of a lower tower of the desorber and carrying out gas stripping on the liquid phase so as to reduce the content of ammonia nitrogen in the urea process condensate. With the method provided by the invention, the concentration of ammonia nitrogen in a feed at a lower segment of the desorber can be regulated and controlled, the usage amount of low pressure steam LPS at tower bottom of the desorber and high pressure steam HPS in the hydrolyzer can be reduced, and thus, the usage amount of steam is reduced in two ways, the concentration of ammonia in water at tower bottom is stabilized, and water yield at the tower bottom is reduced.