277 results about "Sight glass" patented technology

The utility model discloses a liquid return impact experiment device for a low-pressure cavity scroll compressor, and relates to the technical field of experiment equipment, in particular to the liquid return impact experiment device for the low-pressure cavity scroll compressor. One end of a first stop valve is connected with an exhaust pipeline of a tested compressor, and the other end of the first stop valve is connected with an inlet of a gas-liquid separator; an outlet of the gas-liquid separator is connected with a second stop valve; the second stop valve is connected with the electronic expansion valve through an electronic expansion valve pipeline; the electronic expansion valve pipeline is connected with a bypass pipeline in parallel, and a third stop valve is arranged on the bypass pipeline; an outlet of the electronic expansion valve is connected with a fourth stop valve; the fourth stop valve is connected with the liquid sight glass; and the liquid sight glass is connected with an air suction pipeline of the tested compressor. According to the technical scheme, the problems that an existing compressor glow test device in the prior art is complex, whether liquid returns or not is not easily judged, the experimental period is long, and the overall liquid impact resistance of the compressor cannot be rapidly and accurately evaluated are solved.

A safety device is disclosed, consisting of a screw body with a screw head, which is connected to the screw body in one piece and forms a rotary-drive part, and with a thread, which is connected to the screw head in one piece and forms a securing part, and also with a rupture device, which is arranged in a channel of the screw body, wherein a sight glass is accommodated entirely within the channel of the screw body, together with the rupture device, and forms an inspecting device for assessing the state of the rupture device.

The utility model relates to the technical field of observation mirrors, in particular to a water flow observation mirror and forming equipment. When the water flow observation mirror needs to be machined, the water flow observation mirror is placed on a machining table of a polishing mechanism, a first driving piece is started, the first driving piece works to drive a transmission disc to rotate, and the transmission disc drives a transmission plate to rotate; the transmission plate drives the two inclined rods to rotate, when the included angle between the two inclined rods and the transmission plate is reduced, the two inclined rods drive the two protection covers on the two mounting plates to get close to each other until the two protection covers are closed, and at the moment, the polishing mechanism is started to machine the water flow observation mirror; and through the two protective covers, chippings generated when the water flow observation mirror is machined are effectively prevented from splashing to accidentally injure workers, so that the problem that the chippings are splashed to easily injure the workers when the water flow observation mirror is machined by an existing water flow observation mirror forming device is solved.

The invention discloses a concrete resiliometer calibration device, and relates to the technical field of building detection equipment calibration. The concrete rebound apparatus calibration device comprises a rectangular plate-shaped base, a dovetail groove is formed in the base, an arc-shaped clamping mechanism, a jacking mechanism and a laser calibration mechanism are arranged on the base, the arc-shaped clamping mechanism comprises a U-shaped arc-shaped clamping body, an arc-shaped clamping block and a locking bolt, a buffer layer and an anti-skid layer are arranged on the inner side of the arc-shaped clamping block, and transverse stable fixing of a rebound apparatus body is achieved; the jacking mechanism pushes a jacking plate to slide along a dovetail groove through a jacking bolt to axially jack the rebound apparatus main body, the laser calibration mechanism comprises a second fixing plate, a calibration plate, a pressure sensor, a laser transmitter and a laser sight glass, and the laser transmitter transmits a light beam to the laser sight glass to monitor the position of a striking rod. The rebound value calibration precision can be improved, the operation process is simplified, the rebound instrument equipment is protected, and the on-site mobile calibration requirement is met.

The application relates to a steam-sealed sight glass bidirectional sterilization antibiotic stop valve and relates to the technical field of stop valves; the valve body is internally provided with a packing gland, a main valve rod and a steam pipeline in communication with the packing gland and arranged on the valve body, the steam pipeline is used for steam flow; the valve body is provided with a shunt chamber in communication with the steam pipeline, the shunt chamber is internally slidably provided with an isolation block used for plugging an opening of the shunt chamber, the isolation block is provided with a reset spring, the reset spring is telescopic along the insertion direction of the isolation block to the opening of the shunt chamber, and the reset spring is used for limiting the isolation block at the opening of the shunt chamber; the valve body is externally provided with a sterilization chamber located outside the main valve rod, the shunt chamber is provided with an auxiliary steam pipe in mutual communication with the sterilization chamber, and the sterilization chamber is provided with a discharge pipe used for discharging steam. The application can preliminarily sterilize the main valve rod, improves the utilization rate of steam in the steam pipeline, and guarantees the sterilization effect of the steam pipeline on the main valve rod.

The invention discloses a measurement method for urban planning, a lifting mechanism is arranged in a protection box, an inner threaded hole plate is movably arranged in an inner cavity of the protection box, and a measurement instrument is fixedly connected to the top of the inner threaded hole plate. According to the urban planning measurement method, a lifting mechanism, a self-cleaning mechanism, a self-reinforcing mechanism and a height control mechanism are arranged between a protection box and a measurement instrument, so that when the measurement instrument extends out to be used, the measurement instrument can be adjusted through cooperation of the lifting mechanism, the self-cleaning mechanism, the self-reinforcing mechanism and the height control mechanism; the measuring instrument can be automatically cleaned when extending out, the device can apply a reinforcing and positioning procedure by itself, the height control effect is automatically preset, the situation that the sight glass of the measuring instrument is blocked in use due to dust falling is avoided, and the automatic stabilizing effect of the device and the automatic height control effect are further enhanced.

The invention discloses an exhaust structure of a mist exhaust fan, which comprises an air pipe for conveying mixed gas containing rust residues and water vapor; the inlet end of the blow-off pipe is connected to the bottom of the main air pipe, and the outlet end of the blow-off pipe is connected to the drainage pipeline, so that rust residues in the air pipes enter the drainage pipeline through the blow-off pipe under the action of gravity to be discharged; the straight-through sight glass is installed on the monitoring section of the drainage pipeline and used for observing the water flow state in the drainage pipeline in real time; the overflow pipe is welded to the side wall of the drainage pipeline, and a liquid level sensor is installed on the vertical section of the overflow pipe; and the PLC control system is in signal connection with the liquid level sensor and is used for receiving the liquid level signal and triggering an alarm when the liquid level value is higher than a set liquid level threshold value. The drainage pipe is installed, rust residues in the air duct enter the drainage pipeline under the action of gravity so as to be drained away along with water, collision and friction between the rust residues and the fan impeller are avoided, the through sight glass and the liquid level sensor are additionally arranged to monitor the blockage condition of the drainage pipeline, and excessive water accumulation of the fan impeller is avoided.

The utility model discloses a heat preservation tank type storage tank which comprises a tank body, the outer surface of the tank body is covered with a first heat preservation layer, the top end of the first heat preservation layer is provided with a manhole cover and a sight glass, the manhole cover is located in the center of the top of the first heat preservation layer, and the top of the first heat preservation layer is further provided with a feeding and discharging port, a pressure gauge port, a sampling port, a nitrogen port and an emptying port. The heat preservation tank type storage tank is high in practicability, the temperature in the tank body can be kept within the required range in the material liquid storage and transfer process, and meanwhile the heat preservation tank type storage tank has the advantages of being simplified in structure and convenient to move.

The invention belongs to the technical field of pipeline visualization, and discloses a large-diameter low-temperature pipeline visualization device and an assembling method.The large-diameter low-temperature pipeline visualization device comprises a prefabricated vacuum heat insulation sight glass pipe section, a connecting flange, a sealing assembly and a first fastener; the prefabricated vacuum heat insulation sight glass pipe section comprises an inner-layer flow channel pipe and an outer-layer protective sleeve which are coaxially arranged, the outer-layer protective sleeve is arranged outside the inner-layer flow channel pipe in a sleeving mode, a sealed vacuum interlayer is formed between the inner-layer flow channel pipe and the outer-layer protective sleeve, and the two connecting flanges are arranged at the two ends of the inner-layer flow channel pipe respectively. The sealing assemblies are arranged between the two ends of the inner-layer flow channel pipe and the corresponding connecting flanges, and the first fastening piece is arranged on the butt joint portion of the two connecting flanges in a penetrating mode. It can be ensured that the observation window is kept clear for a long time in a deep hypothermia environment, and meanwhile the airtightness and safety of connection with a large-diameter external pipeline are effectively guaranteed.

The utility model relates to a pressure vessel sight glass with a magnetic cleaning brush, which comprises a flange and a transparent observation window arranged in the flange, and further comprises two groups of outer magnetic scrapers and inner magnetic scrapers which are respectively arranged on the inner end surface and the outer end surface of the transparent observation window, and the outer magnetic scrapers and the inner magnetic scrapers are symmetrically distributed; one end of the outer magnetic scraper is located in the center of the transparent observation window and hinged and linked with the flange, and the other end extends to the inner wall of the flange; one end of the inner magnetic scraper is located in the center of the transparent observation window and hinged to the flange, and the other end of the inner magnetic scraper extends to the inner wall of the flange. The pressure vessel sight glass with the magnetic cleaning brush has the advantages that clearer and more reliable observation effect can be provided, the cleaning structure is simplified, the cleaning efficiency is improved, and the maintenance and use cost is reduced.

The utility model discloses a window mechanism and a feeder, and belongs to the technical field of observation windows. The window mechanism comprises an observation mirror, the middle of the observation mirror is provided with an installation through hole, and the observation mirror is used for being installed on a shell of the feeder; the rotating rod comprises a holding section and a connecting section connected with the holding section, the connecting section penetrates through the mounting through hole and is rotationally connected with the inner wall of the mounting through hole, and an angle is formed between the holding section and the connecting section; the scraping arm is connected with the side, away from the holding section, of the connecting section and makes contact with the to-be-cleaned surface of the observation mirror, and the scraping arm and the holding section are located on the two sides of the observation mirror respectively. An operator stands outside the feeding machine, holds the holding section and drives the holding section to rotate, so that the rotating rod can be driven to rotate integrally, the scraping arm on the connecting section is driven to rotate, the scraping arm scrapes and sweeps the to-be-cleaned surface of the observation mirror, dirt such as condensed water vapor and coal dust on the to-be-cleaned surface of the observation mirror is cleaned, cleaning of the observation mirror is facilitated, and the service life of the observation mirror is prolonged. The cleaning process of the observation mirror is simplified, and the cleaning efficiency is improved.

The utility model discloses an additional storage turnover device for powdery materials, and relates to the technical field of material storage. A material taking part is arranged at the bottom end of the material storage tank; a strip-shaped window is arranged on one side of the bottom of the material storage tank; a sight glass is arranged on one side of the top end of the material storage tank; a manhole assembly is arranged in the middle of the top end of the material storage tank; the pressure relief assembly is used for balancing air pressure inside and outside the storage tank; a material storage assembly is installed on one side of the top end of the material storage tank and used for additionally storing materials. By arranging the material storage assembly and the pressure relief assembly, materials can be conveniently added to the material storage tank, the safety of workers is kept when the materials are added, and meanwhile the sealing performance in the storage period is maintained.

The invention relates to the technical field of safety monitoring of chemical equipment, and particularly provides an anti-explosion and anti-corrosion chemical sight glass device which comprises a base, a flange seat, a flange cover plate, a first sight glass and a second sight glass. A mirror base is arranged in the flange base, an air bag is arranged on the outer side of the flange base, and a discharge hole is formed in the inner side of the flange base. A spring pin is arranged at the upper end of the inner side of the flange seat, the mirror seat is connected to the spring pin, and the mirror seat can adjust shielding and avoiding in a self-adaptive mode relative to the relief hole according to pressure changes. Through a linkage mechanism of the air bag, the relief hole and the spring pin, the mirror base can automatically move upwards to relieve pressure when the pressure is suddenly increased, precise resetting and sealing are achieved after pressure relief, and the risk that the sight glass bursts is greatly avoided; the annular distributor is matched with the multiple nozzles to spray nitrogen to the bottom of the first sight glass, a dynamic gas film is formed through an arc-shaped annular section, and corrosion medium isolation and mist elimination are synchronously achieved; and the double-sight-mirror redundancy design provides an emergency observation window when the main sight mirror fails, so that the safety of the device is remarkably improved.

The utility model relates to a polyester process tower, which comprises a tower body, a shunt pipe and a sight glass arranged on the tower body, the tower body is connected with a feeding pipe for conveying ethylene glycol to the tower body, the shunt pipe is provided with a ball valve, one end of the shunt pipe is connected with the feeding pipe, the other end of the shunt pipe is provided with a joint, and the ball valve is connected with the joint. The novel process tower has the advantages that ethylene glycol is sprayed to the sight glass through the spraying assembly, so that the effect of cleaning the sight glass is achieved, and the internal condition of the process tower can be effectively observed; therefore, an operator can accurately adjust the liquid level in the process tower, the production is more stable, and the probability of production accidents is greatly reduced.

The utility model relates to observation equipment for PC flocculus drying, which comprises an outer lens cone and an inner lens cone, the outer lens cone is sleeved on the inner lens cone, the outer lens cone and the inner lens cone are rotatably sealed, one end of the inner lens cone is fixedly connected with an eyepiece, the other end of the inner lens cone is fixedly connected with a sight glass, and the inner lens cone is fixedly connected with a driving plate at one end of the sight glass. A rail groove is formed in the driving plate, a plurality of light shielding plates which are circumferentially and equally divided and rotationally open or close the sight glass are connected in the rail groove, the sight glass is covered when the light shielding plates are closed, and the light shielding plates make contact with the sight glass. According to the observation equipment for PC flocculus drying, the inner lens cone rotates to drive the light shielding plate which is rotationally opened and closed, the light shielding plate is rotationally opened for observation when used, the light shielding plate is rotationally closed to avoid pollution when not used, and dust attached to the sight glass can be removed when the light shielding plate is rotationally opened and closed; out-of-control or equipment parking caused by the fact that the drying condition cannot be observed due to sight glass pollution is avoided.

The utility model discloses a pipeline unblocking device for an integrated denitration system, which relates to the technical field of denitration pipeline unblocking, and comprises a Roots blower, a medicament bin and a spray gun, and further comprises a material conveying pipeline which is formed by combining a plurality of steel pipes, each two sections of steel pipes are connected in a clamping manner through a locking mechanism, and the locking mechanism is used for locking the material conveying pipeline. According to the pipeline unblocking device for the integrated denitration system, the compressed air unblocking assembly and the circulating water unblocking assembly are arranged on the material conveying pipeline, when an external system displays that the pipeline is blocked, compressed air is adopted to purge the pipeline, and when the compressed air cannot be used for unblocking, circulating water is adopted to unblock; the quick-connection sight glass type spray gun connector is arranged in a hoop type connection mode, the blockage clearing condition can be observed more visually, disassembly and assembly are convenient, the maintenance time is shortened, the blockage clearing device adapts to different blockage conditions, the blockage clearing efficiency is improved, and the influence on production is reduced.

The invention discloses an efficient substrate backflow circulating conveying device for a fermentation process, and relates to the technical field of material conveying in the fermentation process. In order to solve the problems that in the fermentation process, a substrate is prone to layering and deposition, circulating conveying is unstable, and disassembling and washing are inconvenient, the efficient substrate backflow circulating conveying device is provided. The device is composed of a fermentation tank, a material pumping port, a material pumping pipeline, an emulsifying pump, a material pumping valve, a sight glass assembly, a buffer hopper, an emulsifying machine, a rotor pump, a return pipe and a delivery pipe, wherein the return pipe and the delivery pipe are connected in a split-flow mode and are controlled by an electric control cabinet in a linkage mode. Substrates are sheared and homogenized in the emulsifying machine after being sucked and are subjected to flow stabilization in the buffer hopper, then reflux circulation is achieved through the rotor pump or the substrates are sent out to the filling machine, and key connection adopts a sanitary fast-assembly structure. The uniformity in the tank can be improved, deposition and wall hanging are reduced, feeding is stable, and CIP cleaning and maintenance are facilitated.

The utility model discloses a vanadium removal device for producing titanium dioxide by a chlorination process, which comprises a vanadium removal reactor, a vanadium removal tower, a vanadium removal reboiler, a reflux tank, a first inspection tank, a second inspection tank and a vanadium removal condenser, and the vanadium removal reboiler is connected with the vanadium removal tower through a mineral oil adding assembly. The online vanadium analyzer is reasonable in structural design, the online vanadium analyzer is additionally arranged on the pipeline from the titanium tetrachloride outlet of the vanadium removal reboiler to the vanadium removal tower, meanwhile, the pipeline sight glass and the monitoring camera are additionally arranged on the feeding pipeline from the return tank to the inspection tank, and real-time data and monitoring pictures of the online vanadium analyzer are transmitted to the central control room. And central control room personnel monitor the vanadium content of the material at the outlet of the vanadium removal reboiler and the chromaticity of a refined product in real time, so that the problem of control lag caused by untimely discovery is solved, and accurate control on the addition amount of mineral oil is realized.

The utility model provides a kind of oil sight glass with cleaning function belongs to oil sight glass field, it includes installation main body, equipment connecting part is provided in one end of installation main body, sight glass is installed in the other end of installation main body, the end of installation main body close to sight glass is provided with cleaning hole, cleaning assembly is installed below cleaning hole;It further includes operating lever, the end of operating lever can be passed through cleaning hole and be connected with cleaning assembly transmission, and cleaning assembly is controlled to carry out cleaning operation, to effectively remove the dirt, impurity etc. pollutant attached to the surface of sight glass.The utility model has the beneficial effect that it can clean the inner wall during the operation of oil sight glass, effectively remove the dirt, impurity etc. pollutant attached, so that operator can better monitor lubricating oil level.

The utility model relates to the technical field of condenser discloses a water chilling unit condenser visible inspection end cover, including the cover body of layout in the condenser end, is equipped with the observation port for observing the inside of condenser on the cover body, is equipped with the sight glass made of toughened glass on the observation port, and the sight glass is connected with the cover body through the flange, and forms sealed closure to the observation port. Through being equipped with the observation port on the cover body, being equipped with the sight glass on the observation port, whether the welding slag, foreign matter in the condenser after the installation is checked, and the structure situation of water chilling unit condenser in normal operation, the scale removal situation and water quality condition etc. during chemical cleaning are observed, to avoid the damage of water chilling unit.

The invention discloses a method for cutting a gutter in underground engineering and canceling a glass observation cover of a leveling layer, and relates to the technical field of underground engineering waterproofing. After being integrally cast and tamped, the underground engineering bottom plate is uneven. And a cement mortar leveling layer is firstly made. When cracks and leakage are generated due to structure settlement, a leveling layer can cover the actual situation of the structure cracks, according to the method, on the surface of a structure bottom plate, the leveling layer is omitted, a water guide groove is cut or pre-buried with a water collecting well as the area center, a plastic drainage plate is laid, a glass observation cover is installed, concrete is poured, and a hollow surface layer is formed, so that the structure cracks can be exposed in the hollow layer; and cracks can be conveniently positioned and maintained. Glass observation covers are dispersedly arranged on the hollow surface layer, an observation point is a double-layer sleeve, an inner sleeve can be taken out, and then a wire of a sight glass is put into the hollow layer, so that the specific position of a structural crack can be conveniently checked in a segmented manner. The inner sleeve and the outer sleeve can be constructed in various ways, the inner sleeve can be taken out, and leaked accumulated water can be pumped out. According to the technical scheme, the surface of the structure is exposed in the hollow layer, the water seepage condition of the structure crack can be timely and conveniently known through the glass observation cover, then the crack is positioned and found, and underground engineering is permanently seepage-free.

The utility model relates to a safety device, comprising a screw body (10), which has a screw head (36), which is integrally connected to the screw body, as a rotational drive part, and which has a thread (30), which is integrally connected to the screw body, as a fastening part, and which has a bursting device (12), which is arranged in a channel (16) of the screw body (10), the sight glass (20) is completely received as an inspection device (14) together with the bursting device (12) in the channel (16) of the screw body (10) for identifying the state of the bursting device (12). The disclosure also relates to a hydraulic component having a housing with such a safety device. The utility model relates to a safety device, by means of which it is ensured that the bursting device breaks as a safety element when a predefinable pressure limit value is exceeded, as a result of which the channel of the fastening device is filled with a fluid until an inspection device arranged opposite the bursting device "responds" and notifies a failure situation.

The utility model provides a ceramic membrane online characterization device which comprises ceramic membrane equipment, a flushing part, a drying part, an impregnating compound part and a penetrating agent part, and a sight glass is arranged at the top of the ceramic membrane equipment; the washing part comprises a washing liquid tank and a washing pump; the washing liquid tank is communicated with a washing connecting pipe of the ceramic membrane equipment through the washing pump; the drying part comprises a gas storage tank, an exhaust port of the gas storage tank is communicated with the flushing connecting pipe, and first stop valves are mounted on first branch pipes respectively; the impregnating compound part comprises an impregnating compound tank and a feeding pump, and the impregnating compound tank is communicated with a mother liquor connecting pipe of the ceramic membrane equipment through the feeding pump; the penetrant part comprises a penetrant tank, an outlet of the penetrant tank is communicated with the penetrating fluid connecting pipe through a second branch pipe, and a second stop valve is mounted on the second branch pipe; according to the method, the ceramic membrane of the ceramic membrane tube nest can be represented in an on-line mode, detachment is not needed, and the method has the advantages of being simple in operation process, small in human intervention amount, small in representation workload and the like.

The utility model discloses a kind of blending kettle with intelligent sight hole lamp, it is related to the technical field of blending kettle, the utility model includes the top of shell is equipped with several sight glasses, the upper end of sight glass is equipped with sight hole lamp, the upper end of shell is also provided with manhole, the edge portion of manhole is hinged with manhole cover by hinge structure;Magnetic control sensor is integrated in the circumferential edge portion of manhole, and permanent magnet assembly is embedded in the coaxial corresponding position of manhole cover inner side, touch sensor is integrated in the installation base adjacent area of sight hole lamp, the output signal end of magnetic control sensor and touch sensor is respectively accessed microcontroller, microcontroller controls the power supply loop on-off of sight hole lamp by relay drive circuit.The application is coupled with the magnetic field of magnetic control sensor and permanent magnet to realize accurate linkage with opening action, without manual intervention.Touch sensor adjacent to sight hole lamp provides intuitive operation, responds quickly, and it is convenient, low in cost, avoid the security risk of line aging or damage.

This utility model provides an automatic sight glass switching device for a silo, comprising a conveying pipe, a sight glass switching device, and a controller. The conveying pipe is located at the bottom of the silo and has a material valve. The sight glass switching device includes a rotating disk, a drive motor, and two sight glass tubes. Each sight glass tube has a window on its side wall, and the window is fitted with transparent glass. The rotating disk has two through holes, and the two sight glass tubes are vertically fixed to the rotating disk and communicate with the through holes respectively. The drive motor is located below the rotating disk and drives the rotating disk to rotate. Either sight glass tube can be connected to the bottom of the conveying pipe. The controller is connected to the drive motor. This utility model is a simple, easy-to-operate, and efficient automatic sight glass switching device for a silo that eliminates the need for machine downtime for cleaning.

The invention belongs to the technical field of silicone oil supply devices, and particularly relates to a double-tank linkage type car lamp coating silicone oil automatic supply device which comprises a large vacuum tank body and a small vacuum tank body. A pipeline assembly is fixed and communicated between the top end of the large vacuum tank body and the top end of the small vacuum tank body; one side of the top end of the large vacuum tank body is fixedly connected with a single floating ball liquid level meter, and the other side of the top end of the large vacuum tank body is provided with a silicone oil injection flange and a pipeline sealing seat I; whether the volume of injected silicone oil is full or not is observed through the first sight glass, the first pipeline sealing seat is used for connecting the first pipeline and the second pipeline, and the pneumatic baffle valve is automatically opened and filled with atmosphere or nitrogen when the silicone oil flows from the large vacuum tank to the small vacuum tank, so that the pressure of the large vacuum tank is larger than that of the small vacuum tank. And the liquid silicone oil flows into the small vacuum tank body with the small pressure intensity from the tank body with the large pressure intensity.

The utility model discloses a visual tar removal rectifying tower, which relates to the technical field of rectifying towers, and comprises a rectifying tower main body, the rectifying tower main body is connected with a first condenser through a pipeline, the bottom of the rectifying tower main body is connected with a reboiler through a liquid phase pipe, the reboiler is connected with the rectifying tower main body through a reboiler gas phase pipe, and the rectifying tower main body is connected with a second condenser through a pipeline. A first observation sight glass is arranged on the liquid phase pipe; the reboiler is connected with a distillation retort through a pipeline, a distillation gas phase pipeline and a vacuum pipeline are arranged on the distillation retort, the distillation gas phase pipeline is connected with a gas phase pipe of the reboiler, and a discharging pipeline is arranged at the bottom of the distillation retort; the first condenser is connected with the reflux tank through a pipeline, a second observation sight glass is arranged between the first condenser and the reflux tank, and the reflux tank is connected with the rectifying tower main body through a reflux pipeline; a condensation assembly is arranged at the upper end of the rectifying tower body. The tar content can be judged by observing the color of a material through the sight glass, and the product quality can be guaranteed.

A jacket is sleeved on the outer side of a tank body, a water inlet and a gas outlet are fixedly communicated on the side wall of the jacket, a water outlet is fixedly communicated at the bottom of the jacket, a discharge port is fixedly communicated at the bottom of the tank body, a thermodetector II is mounted on the tank body on one side of the discharge port, and a plurality of flange connectors are arranged at the top of the tank body. Wherein one group of flange interfaces is provided with a thermodetector I, the other group of flange interfaces is provided with a heat exchanger, the other group of flange interfaces are provided with sight holes, a support frame is arranged on a central flange plate at the top of the tank body, a speed reducer is arranged above the support frame, and the input end of the speed reducer is fixedly connected with the output end of a motor. According to the utility model, the fixed blade is mounted on the central rotating gas pipe and matched with the stirring blade II obliquely mounted at the bottom, so that the vertical turbulent flow of liquid can be enhanced, the mixing efficiency is improved, and meanwhile, the stirring blade I with opposite rotating directions is arranged outside the rotating gas pipe, so that the stirring and mixing effects can be further improved while rotational flow is avoided.

The utility model provides an improved wastewater zero-discharge crystallization byproduct salt elutriation and classification device. The improved wastewater zero-discharge crystallization byproduct salt elutriation and classification device comprises a cylindrical barrel structure, namely a salt leg, which extends downwards from the bottom of an evaporation crystallizer; a transition straight pipe section is arranged between the bottom of the crystallizer and the salt leg and connected through a flange; an emptying pipe is arranged at the bottom of the salt leg, and a flushing water pipe is arranged above the emptying pipe; a plurality of elutriation liquid feeding pipes are symmetrically arranged at the same height of the lower part of the salt leg, and elutriation liquid is uniformly distributed to each pipe for feeding; a crystal mush discharging pipe is arranged at the middle lower part of the salt leg and above the elutriation liquid feeding pipe; and sight glasses are arranged on the salt legs. The device is simple in structure, remarkable in effect and low in cost, and the purity, granularity and organic impurity content of the byproduct salt can be greatly improved.