71results about How to "Control burning rate" patented technology

The invention discloses an environment friendly type industrial smoke overall treatment boiler which comprises a boiler body, a heat exchange box and a purification box. A base is arranged at the bottom end of the boiler body, a burning cavity is arranged inside the boiler body, a burning separating plate is arranged at the lower end of the burning cavity, a fuel gas pipe is arranged below the burning separating plate, one end of the fuel gas pipe is connected with a fuel gas device, a feeding opening is formed in one side of the burning cavity, a conveying belt is arranged on the outer side of the feeding opening, a combustion-supporting pump is arranged on one side of the burning cavity, a supporting plate is arranged above the burning cavity and supports a water tank, and water in the water tank is heated to be discharged through a water discharging pipe; and the heat exchange box is arranged, heat of smoke in a smoke pipe is transferred to water in the heat exchange box, the waterin the heat exchange box is preheated, the water heating speed is increased, the heat energy is sufficiently used, the using amount of fire coal can be reduced, and energy conservation and emission reduction are achieved. The environment friendly type industrial smoke overall treatment boiler is reasonable in design, practical, feasible, more user-friendly and suitable for application and popularization.

The invention provides a pressurizing common-rail oil injection system, relating to an oil injection system of a diesel. The invention provides the pressurizing common-rail oil injection system with a pressurizing valve and a common-rail pipe arranged together. The system comprises a high-pressure oil supply pump, the common-rail pipe, a high-pressure oil pipe and an oil return pipe, and is characterized by further comprising a control valve, the pressurizing valve, an electric control unit and a plurality of electric control injectors, wherein the pressurizing valve is arranged behind the common-rail pipe and each control valve, and the pressurizing valve, the common-rail pipe and the control valves are connected by the high-pressure oil pipe one another. In the system, lower injection pressure is adopted in pre-injection and after-injection, the exhaust and energy consumption are reduced, stroke of a pressurizing plunger can be controlled, and unnecessary oil return loss can be reduced.

The invention relates to functional low-gram-weight cigarette paper, wherein the body phase thereof contains cut tobacco fibres or a first tobacco powder, a second tobacco powder is attached to the outer surface of at least one side of the body phase, and the first tobacco powder is the same as or different from the second tobacco powder. The invention further relates to a preparation method of the functional low-gram-weight cigarette paper. The preparation method comprises the following steps: (1) preparing paper pulp; (2) preparing special suspension stabilizing fluid for cigarette paper coating; and (3) making paper by a paper machine. The functional low-gram-weight cigarette paper disclosed by the invention is uniform in colouring and capable of improving the non-transparency of the cigarette paper; moreover, the functional low-gram-weight cigarette paper is good in stiffness and beneficial to roll; meanwhile, the functional low-gram-weight cigarette paper is good in ash wrapping force and capable of improving the smoking feeling of cigarettes. The functional low-gram-weight cigarette paper disclosed by the invention is also capable of effectively improving the sensory quality of the rolled cigarette produced during a smoking process and reducing harmful ingredients in the smoke of the cigarettes. Therefore, the functional low-gram-weight cigarette paper disclosed by the invention has a wide application prospect.

A controllable and multifunctional combined cooker with charcoal fire serving as a heat source comprises a base assembly, a chafing dish assembly, a barbecue assembly and a cooking assembly, wherein the base assembly is used for storing charcoal fire, and the chafing dish assembly, the barbecue assembly and the cooking assembly are connected onto the base assembly. The chafing dish assembly, the barbecue assembly and the cooking assembly share one base assembly, so that the controllable and multifunctional combined cooker is suitable for cooking on a dinner party in the field and at home, chafing dish, barbecue and cooking operation can be completed respectively by matching different assemblies with the base assembly. The controllable and multifunctional combined cooker is compact and practical in structure, convenient to carry and rich in functions, chafing dish, barbecue and cooking operation can be achieved through one cooker, and therefore, the current fashionable modes of having a dinner party, such as chafing dish and barbecue are facilitated greatly. By means of the controllable and multifunctional combined cooker with charcoal fire serving as the heat source, the combustion speed of charcoal fire can be controlled, heat control during chafing dish, barbecue and cooking are regulated conveniently, and cooking of food is facilitated. Furthermore, burning charcoal is positioned in a cooker body, so that flame cannot come out of the cooker body, and safety and protection performance are good. Therefore, the controllable and multifunctional combined cooker with charcoal fire serving as the heat source is quite applicable to occasions when people have the dinner party at home and in the field.

The invention relates to a moxibustion therapeutic apparatus. The moxibustion therapeutic apparatus has the beneficial effects that the moxibustion therapeutic apparatus comprises a box; an opening is formed in the top surface of the box; a wind board is arranged at the opening; moxa insertion holes are formed in the bottom surface of the box; moxa stick sleeves used for placing moxa sticks penetrate through the moxa insertion holes; a plurality of heat adjusting holes are formed in the side of the box; accordingly, the moxibustion therapeutic apparatus can be suitable for large area moxibustion therapy, is accurate in determining acupoints at fixed points and convenient in adjustment and accurate control of temperature and is safe and reliable; further, a smoke vent is formed in the side of the box and a smoke discharge pipe is connected with the smoke vent and comprises an adjustable hose and a length adjustable smoke discharge support pipe connected with one end of the adjustable hose, thus forming s moxa smoke channel to effectively discharge moxa smoke.

The present invention discloses an incense fumigation box, which comprises an upper box body and a lower box body, wherein a fan is arranged inside the lower box body, a holder for placing incense is arranged inside the upper box body, a separation plate is arranged between the upper box body and the lower box body and is provided with gas exhaust holes, and the side wall and the top cover of the upper box body are provided with gas exhaust holes. According to the present invention, the incense fumigation box has characteristics of simple structure and easy use, the incense ash can be collected in the box body so as to avoid environmental pollution, and the burning speed of the incense, and the smoking discharging direction of fumigation can be controlled.

The invention relates to a Quintana suspension moxibustion bed, a control system and a control method thereof. The Quintana suspension moxibustion bed comprises a bed frame, a bed surface and a moxibustion device mounted on the bed frame, and a control box for controlling the running of the moxibustion device, the bed frame is provided with a lifting device for driving the lifting of the moxibustion device, the moxibustion device is located directly above the bed surface, and the control box and the moxibustion device are electrically connected. The Quintana suspension moxibustion bed has the useful effects that when a patient lies on the bed, the distance between the moxibustion device and the patient's body is controlled by the control box through the lifting device, the effect of the moxibustion therapy by the receiving patient is ensured, additionally, by the automatic ignition of the moxibustion device, the problems of being likely to cause misoperation, posing a security risk, and low work efficiency in traditional moxibustion therapy and present moxibustion devices are prevented.

The invention discloses a fuel feeding proportion adjustable combustor. The combustor comprises a fireproof unit, a metal part, a fuel flow control device, a fuel-third oxidizing agent feeding system,a first oxidizing agent feeding system and a second oxidizing agent feeding system, wherein the fuel-third oxidizing agent feeding system comprises a fuel burner as a plurality of third oxidizing agent channels; the first oxidizing agent feeding system comprises a plurality of first oxidizing agent channels; the second oxidizing agent feeding system comprises a plurality of second oxidizing agentchannels. The fuel burner comprises second fuel injection pipes located at the center and first fuel injection pipes defined by the outer walls of the second fuel injection pipes and the inner wall of the burner. The combustor provided by the invention can be used for a multi-fuel kiln furnace and can adjust the feeding proportions of various fuels.

A smoking pipe apparatus includes an elongated body having a first end, a second end, a base, a primary side, a first margin, and a second margin. Also, a bowl including a sidewall extending from a step that terminates at the primary side, the bowl includes multiple voids that are disposed inward from the step toward the base. The voids inwardly terminate at a central ridge located inward from the step toward the base wherein the ridge is extended toward the primary side between the step and the voids. Also, passageways are within the body extending from the voids. A screen that is supported on an outer periphery by the step and centrally on the ridge, the screen is concave from the primary side. Operationally, tobacco is ignited in the screen concave area, a diffusion of smoke is created in the voids for an outward omnidirectional burn of the tobacco.

A new concept hybrid multiple combustion mode engine comprising a motor, a double fuel tank, a ternary catalytic converter and an electronic control unit, wherein double fuel tanks connects to their solenoid valves respectively, the ternary catalytic converter is mounted on the engine exhaust pipe which connects to EGR valve, the EGR valve is connected with the intake, the input end of the electronic control unit receives various signals send from the engine, the output end connects to the solenoid valve, sparking plug and EGR valve.íí

The invention provides a method for preparing CuCrO2 powder. The method comprises the following steps: (1) preparing a water solution with equal mole number and the total mass concentration of 5-20%; (2) adding a composite combustion agent water solution into the solution obtained in (1), wherein the composite combustion agent water solution is a glycine and citric acid mixture; (3) adding an inorganic salt solution into the solution obtained in (2); (4) adding ammonium hydroxide to regulate the pH value of the solution obtained in (3) to be 2.5-5.5; (5) heating up the solution obtained in (4) for combustion, and after finish of combustion, collecting grey powder; and (6) grinding and roasting to obtain CuCrO2 powder. The obtained CuCrO2 powder is small in granularity, uniform in dispersion, high in purity and good in crystalline perfection, and represents favorable water-splitting activity for hydrogen production after being compounded with WO3.

The invention discloses an adjustable moxibustion device and relates to the field of moxibustion devices. The adjustable moxibustion device includes a moxibustion barrel. A sealing cover is fixed to one end face of the moxibustion barrel, a spreader plate is fixed to the other end face of the moxibustion barrel, the other end face of the moxibustion barrel is matched and provided with a moxibustion cap, and the barrel wall of the moxibustion barrel is provided with an air outlet hole and an air inlet hole. An adjusting bolt is matched with and fixed to the sealing cover and is in threaded connection with the sealing cover. An adjusting column is fixed to one end of the adjusting bolt, one end of the adjusting column is matched with a fixing barrel to fix a burning disk, an adjusting plateis disposed at the position of the edge of one surface of the burning disk, a fixing plate is fixed to one surface of the burning disk through a fixing column, a plurality of igniters are fixed to onesurface of the fixing plate, a gas diversion disc is arranged in the moxibustion cap, and one surface of the moxibustion cap is provided with a contact layer. An adjusting mechanism is composed of the adjusting bolt and the adjusting column, the valve opening of the air inlet hole and the distance between the burning disk and the moxibustion cap are controlled by extension of the adjusting mechanism, and the speed of moxa granule burning and the moxibustion temperature are controlled.

The invention relates to a tea and chrysanthemum cigarette and a preparing method thereof. The tea and chrysanthemum cigarette comprises tea filaments, chrysanthemum petals, honey, fructose, grosvener siraitia extractive, tobacco flower extractive, chicory extract, concentrated juice and fig extract. Due to the specific components and the ratio, the tea and chrysanthemum cigarette is fragrant, sweet, mild and good in taste, and the burning speed and the cigarette ash color of the tea and chrysanthemum cigarette are basically the same with those of a traditional cigarette; furthermore, dope is not prone to occurring in the cigarette ash, the tea and chrysanthemum cigarette can be easily accepted by smokers, and consumers can enjoy the feeling of smoking the traditional cigarette. The tea and chrysanthemum cigarette can eliminate the dependency of the smokers on the cigarette, and the smokers can quit smoking in unawareness. The preparing method of the tea and chrysanthemum cigarette has fewer processes and is easy to operate. By means of a standing step, a mixed liquid can be fully absorbed by the tea filaments and the chrysanthemum petals, the fragrance of the tea and chrysanthemum cigarette is made to be even, the chrysanthemum petal fragment fragments and the tea filaments are reduced, and thus the burning speed of the tea and chrysanthemum cigarette can be controlled.

A pellet stove includes a hopper for storing pellets, a basket for receiving the pellets by gravity, a duct for conveying combustion air to the basket, and a conduit for conducting heated air away from the basket. The position of the basket is adjustable, such as by raising and lowering it, or by rotating it, so as to control the number of pellets in the area of most intense combustion. One or more optional burn plates, positioned below the basket, provide platforms on which pellets falling through the basket can burn down to a smaller size. The pellet stove requires no external source of power. The stove so constructed enables quiet, efficient and clean burning of the pellets.

The invention relates to a moxibustion instrument, mainly aiming at solving the problem that existing moxibustion instruments are not significant in treatment effect, and large in damage to patient bodies. The moxibustion instrument is characterized in that a rotary support (11) is fixed on a pedestal (9), a moxibustion head is connected with the upper end of the support (11), the moxibustion head comprises a combustion chamber (4) and a moxa holding chamber (6), the moxa holding chamber (6) is positioned in a combustion chamber (4), a moxa holding chamber clamping spring (5) is arranged between the combustion chamber (4) and the moxa holding chamber (6), an ash removing device (3) is connected with the outer part of the lower end of the combustion chamber (4), an ash storage box (2) is connected with the bottom of the ash removing device (3), and a lens (1) is fixed on a lower end face of the ash storage box (2); a smoke exhaust joint (8) is connected with the upper end of the combustion chamber (4), and the smoke exhaust joint (8) is connected with a smoke abatement device (10) via a smoke exhaust pipe (13). The moxibustion instrument has the functions of directional energy gathering and focusing, and is significant in treatment effect, non-damage to human bodies, and free of smoke emission.

The invention discloses an energy-saving heating control device of a greenhouse hot blast stove. The energy-saving heating control device comprises a hearth chamber, the hot blast stove, a temperaturesensor, an MCU controller and a PWM power module. The hearth chamber is arranged at the lower portion of the hot blast stove, and a fan is installed on a direct current motor. The direct current motor, the temperature sensor, the MCU controller and the PWM power module form the energy-saving control device. The energy-saving heating control device of the greenhouse hot blast stove is reasonable in structural arrangement, the temperature sensor is used for monitoring greenhouse inner air temperature information in real time, the MCU controller outputs a PWM control signal according to the relationship between the measured temperature value and the set temperature range, the PWM signal is amplified through the PWM power module and is then used for driving the direct current motor, the rotating speed of the fan is determined according to the rotating speed of the motor, the greenhouse inner temperature can be monitored, the rotating speed of the fan at an air inlet of the hot blast stovecan also be controlled, and therefore control over the fuel combustion speed and the heat generation speed is achieved, and a proper environment can be provided for greenhouse crop growth.

The invention discloses a mosquito coil box with a function of adjusting mosquito coil burning speed. The mosquito coil box comprises a mosquito coil cover and a mosquito coil barrel, the mosquito coil cover and the mosquito coil barrel are in inserted connection, the top of the mosquito coil cover is provided with a smoke vent, the bottom of the mosquito coil cover is provided with an annular boss, the mosquito coil cover is provided with an annular vent slot, and a positioning part is arranged on an annular seal plate which is arranged on the annular vent slot. The mosquito coil barrel comprises a barrel wall and a bottom plate, the upper end of the barrel wall is provided with an annular groove matched with the annular boss, a porous supporting plate is arranged on a positioning device which is arranged in the barrel wall, and the supporting plate and the positioning device are in detachable connection. The mosquito coil box with the function of adjusting mosquito coil burning speed has the advantage that defects of short service life, quickness in burning of mosquito coils and troublesomeness in ash pouring of existing mosquito coil boxes are overcome.

The invention provides an engine system and an engine fuel injection method. A hydrogen supply device and a water supply device are directly connected with a combustion chamber to directly inject hydrogen and water into the combustion chamber correspondingly, hydrogen is injected into the combustion chamber at least two times so that the concentration of hydrogen in the combustion chamber can be distributed in a gradient manner, in this way, the over-high combustion rate of hydrogen can be controlled, then knocking is prevented, and therefore an engine can work in a large-load working environment; and furthermore, water is directly injected into the combustion chamber through a water injection device, so that the combustion speed of hydrogen is controlled, the combustion speed of hydrogen is prevented from being too high, knocking is further prevented, the combustion temperature can be reduced, and therefore generation of nitrogen oxide pollution gas is reduced, and meanwhile the engine system and the engine fuel injection method are beneficial to enhancing expansion acting and improving heat efficiency.

The invention discloses a gas storage separated moxibustion physiotherapy instrument comprising a moxibustion flue gas generation part, an action part, a temperature control system and a gas storage tank; the moxibustion flue gas generation part generates moxibustion flue gas to reach the action part through the gas storage tank; the action part is placed in different positions of a required humanbody for physiotherapy; the temperature control system is used for temperature detection of the whole process and for temperature control of the action part; the gas storage tank is used for storingunused gas. The gas storage separated moxibustion physiotherapy instrument provided by the invention separates moxibustion combustion and flue gas physiotherapy, and stores flue gas at the same time,so that the generation and function of flue gas are not carried out in the same time and space, the control of the flue gas use time is facilitated, the use efficiency of the flue gas is improved, theoutput, storage and use are separated, the function of multi-person and multi-part physiotherapy at the same time is realized, excess flue gas does not need to be discharged, and environmental pollution is reduced.

The invention provides a waste medicine combustion system. The waste medicine combustion system comprises a waste medicine combustion unit, wherein the waste medicine combustion unit is provided withan ice hole structure; waste medicines are placed in the ice hole structure; the waste medicine combustion unit communicates with a tail flame treatment unit; the ice hole structure is made of ice; tail flame generated by combustion of the waste medicines in the ice hole structure of the waste medicine combustion unit is guided into the tail flame treatment unit; and the tail flame treatment unitperforms harmless treatment on the tail flame. The combustion speed of the medicines is determined by the combustion surface and the surface temperature, and a solid propellant (medicine) used by an engine can control the combustion surface through shaping so as to control the combustion speed. However, the waste medicines are irregular fragments or powder, and the combustion surface cannot be controlled, so that the ice hole structure is used for controlling rapid rise of the surface temperature, and the combustion speed is well controlled. If heat released after combustion of the waste medicines is positively fed back, the temperature can rise rapidly, and the waste medicines are combusted by adopting the ice hole structure, namely, the heat is absorbed, so that the temperature rise speed is reduced, and the combustion speed is controlled.

The invention discloses a household straw pellet downward guiding type combustion furnace, and belongs to the technical field of straw pellet combustion equipment. The combustion furnace is mainly composed of a feeding device, an air inlet adjusting ring, an upper furnace body, a furnace grate and a lower furnace body. The feeding device is movably connected with the upper furnace body through a thread. The air inlet adjusting ring is arranged on the outer side of the upper furnace body with vent holes II in a sleeving manner. A supporting ring I of the upper furnace body is in contact with a supporting ring II of the lower furnace body. A combustion chamber is formed by the upper furnace body and the lower furnace body and is divided into two cavities by the furnace grate located on an annular platform of the lower furnace body. Vent holes I are formed in the lower portion of the feeding device. Vent holes are formed in the positions, below the furnace grate, of the side face and the bottom face of the lower furnace body. The combustion furnace has the beneficial effects of being simple in structure, convenient to manufacture and use and capable of enabling straw pellets to be fully combusted, and is especially suitable for straw pellet combustion of northern rural areas.

The invention discloses a vehicle data processing method and device, a storage medium and a processor. The method comprises the steps that the carbon loading capacity and the pressure difference value of a gasoline engine particle trap of a vehicle are obtained; respectively comparing the carbon loading capacity and the pressure difference value with preset values to obtain a first comparison result; according to the first comparison result, the active regeneration state of the gasoline engine particle trap matched with the vehicle is determined, and the active regeneration state comprises at least one of the following states: the active regeneration state, the limited active regeneration state and the mixed limited active regeneration state; according to the active regeneration state, control information is generated, and the control information comprises at least one of an instruction for maintaining the current active regeneration state of the gasoline engine particle trap and an instruction for correcting air-fuel ratio parameters. By the adoption of the technical scheme, the problem that the GPF of the gasoline engine is prone to being blocked due to the fact that exhaust back pressure rises is solved.

This invention discloses a fireworks emit structure including emitting tubes characterizing at least three emit tubes with upward orifices are arranged in a row in fan shape, at least three rows are parlalel together; one slow fired lead, 2-6 quick fired are bound to form an launch control lead which is serial in Z shape between launch tubes, namely the launch control lead is serial to the first row orderly then turn to the next close adjacent launch tubes orderly in series then turn to the next close adjacent launch tubes orderly in series.

The invention relates to the technical field of mosquito expelling and killing, in particular to plant fiber mosquito incense and a preparation method thereof. The plant fiber mosquito incense comprises plant fiber incense base. The plant fiber incense base contains a mosquito expelling and killing agent. The plant fiber incense base comprises the following components in percentage by weight: 30-80% of bamboo fiber, 0-40% of waste paper fiber, 0-30% of wood fiber, 5-25% of carbon powder and 1-12% of talcum powder. The plant fiber mosquito incense has the advantages of light weight, difficulty in breaking, cleanness and sanitation and also has the characteristics of safety, environmental protection, energy saving and low cost. The method for preparing the plant fiber mosquito incense has energy saving, environmental protection, simple process, compact equipment, large-scale production and obvious economic and social benefits.

Disclosed is an explosion-proof single-crystal furnace for production of heavily-doped phosphorus silicon single crystal. A main vacuum pump of the single-crystal furnace is communicated with the bottom of a furnace tube through an extraction pipeline to be controlled to extract air in the furnace tube through the extraction pipeline; an air inlet pipeline connected to one end of the extraction pipeline and close to the furnace tube is connected with an air switch to have the air switch controlled to feed air into the extraction pipeline, and phosphorus-containing volatile substances deposited in the extraction pipeline are allowed to be removed by oxidation. The air inlet pipeline is added to the foremost end of the extraction pipeline of the single-crystal furnace, the air can be fed to the extraction pipeline through the air inlet pipeline after the air switch on the air inlet pipeline is turned on, parts of pipeline walls, filters and the like deposited with the volatile substances are oxidized, the situation that heat produced from reaction is accumulated to reach the explosive limit is avoided, burning speed of phosphorus is well controlled, and the problem about pipeline explosion is solved.

The invention discloses a method for field burning destruction with mixing and matching of multiple explosives. The method comprises the steps that (1) a shooting range is selected for burning destruction, wherein the site satisfies requirements; (2) timber is paved on the site and the multiple explosives are paved on the timber, wherein the multiple explosives comprise hexogen, an emulsion explosive, pentolite and scaly TNT, the hexogen and the emulsion explosive are of a bar-shaped structure, the hexogen and the emulsion explosive are distributed alternatively along the length direction of the timber, the pentolite is distributed along two sides of the length direction of the timber, and the scaly TNT is located between the pentolite; (3) diesel oil is sprinkled on the explosives and thetimber, an ignition device is paved on the explosives, and an ignition site of the ignition device is located outside a safety distance; and (4) ignition is conducted at a leeward location, wherein the ignition device is used for igniting the timber and the diesel oil, so the explosives can be ignited. The method for field burning destruction with mixing and matching of the multiple explosives disclosed by the invention has the beneficial effects that spacing, thickness and so forth of the explosives are effectively controlled through rational arrangement of the explosives, so speed and efficiency of combustion of the explosives can be effectively controlled; combustion of the multiple explosives cannot be interrupted or converted to detonation; efficiency is high; and safety is good.

The invention relates to an electromagnetic heating type oxygen generation method and an oxygen generator. An oxygen candle or tablet is prepared from an oxygen candle oxygen-generating agent and putinto a container for heating by an electromagnetic heater, so the oxygen candle or tablet is decomposed and releases oxygen. According to the invention, an electromagnetic heating manner is employed to replace the traditional manner of heat release via metal powder in an oxygen candle formula, so an electric igniter or a bumping type igniter is not needed in the process of oxygen release, and thespeed of oxygen release is determined by the speed of electromagnetic heating; and an internal oxygen generating agent can be conveniently replaced, so the oxygen generator can be repeatedly used. Theelectromagnetic heating type oxygen generation method and the oxygen generator of the invention have the characteristics of a replaceable oxygen source, a rechargeable power source, portability, small size and light weight, and have broad development prospects in the fields of emergency lifesaving, health care, medical treatment, etc.

The invention relates to the field of lamps and aims to provide a multi-light-source wind-shielding lamp. The multi-light-source wind-shielding lamp comprises a bottom base, a top base, a transparent wind-shielding cover located between the bottom base and the top base, a rotation plate located on the upper side of the bottom base, a rotation plate drive assembly and a power source connected with the bottom base. The rotation plate is provided with a candle fixing base, an electric lamp base and an LED lamp base uniformly arranged around the periphery of the rotation axis. When the multi-light-source wind-shielding lamp is in use, the center of the candle fixing base or the center of the electric lamp base or the center of the LED lamp base is opposite to the center of the bottom base. According to the invention, multiple light sources can be used, and the lighting source can be always located in the center of the bottom base so that peripheral illumination can be uniform.

The invention discloses a furnace capable of simultaneously producing semi coke by using small-particle coal. The furnace comprises a furnace body, wherein a charring chamber is arranged in the furnace body; the middle part and the lower part of the charring chamber are steel water jackets connected with water inlet and outlet pipes; and inlet pipes which are communicated with each other and are provided with control valves are distributed on the peripheral wall of the steel water jackets uniformly. The furnace has reasonable structure, can effectively control the burning temperature in the charring chamber, avoid the phenomenon that the small-particle coal is instantly burnt up because of overhigh temperature, and improve the semi coke yield.

Disclosed is a pipe bowl, comprising a pipe bowl body (1), wherein a first vertical through hole (11) is formed in the pipe bowl body (1), an upper portion of the pipe bowl body (1) is formed to be a pipe tobacco receiving cavity (12) with a top port, and the pipe tobacco receiving cavity (12) is in communication with the first through hole (11) and is provided with a blocking portion (13) for preventing pipe tobacco from falling into the first through hole (11); and further comprising a charcoal plate (2) covering the port of the pipe tobacco receiving cavity (12), wherein a top cover (4) with a first vent hole (41) and an adjusting board (5) capable of adjusting the size of the first vent hole (41) are arranged at the top of the charcoal plate (2). The charcoal plate (2) and the pipe bowl body (1) are separately arranged, when the pipe tobacco needs to be replaced, only the charcoal plate (2) is taken down without replacing charcoal in the charcoal plate (2), and replacement of pipe tobacco is more convenient and safer in comparison with disposable tinfoil used in the prior art; and as the top cover (4) and the adjusting board (5) are present, the rate of air circulation into the charcoal plate (2) can be controlled, so that charcoal combustion speed is controlled, and pipe tobacco combustion speed is adjusted according to requirements, thereby bringing convenience to a user.